bluuebunny/crossref_metadata_2025 huggingface dataset:
Variations in the reporting of gestational age at induced termination of pregnancy.
Authors: Petersen D J , Alexander G R , Powell-Griner E , Tompkins M E
Published: November 2008

Utilizing the 1980 Induced Abortion File maintained by the National Center for Health Statistics, we compared gestational age from date of last normal menses and the physician-based estimate of gestational age. An average .51 week difference between the two methods was observed. Beyond seven weeks gestation, the date of last normal menses value was underestimated by the physician-based estimate with a markedly greater divergence after 20 weeks. A relatively greater underestimation of the date of last normal menses interval by the physician estimate was apparent for Whites after 13 weeks. The data of last normal menses value for non-state residents was overestimated across the entire range of the date of last normal menses gestational age distribution until 21 weeks.
American Indian youth and drugs, 1976-87: a continuing problem.
Authors: Beauvais F , Oetting E R , Wolf W , Edwards R W
Published: November 2008

Continuing surveillance of drug use among American Indian adolescents living on reservations shows them to have rates of use higher than those of their non-Indian counterparts. Marijuana use is particularly high among Indian students. By the 7th grade a significant number of Indian youth have tried drugs, particularly marijuana and alcohol, and there are few significant differences by gender. Based on observed patterns of use, intervention strategies need to begin in the elementary school years and target both males and females equally.
How free care improved vision in the health insurance experiment.
Authors: Lurie N , Kamberg C J , Brook R H , Keeler E B , Newhouse J P
Published: November 2008

We studied reasons for the improvement in the functional vision of enrollees receiving free care in the Rand Health Insurance Experiment. Among low income enrollees, 78 per cent on the free plan and 59 per cent on the cost-sharing plans had an eye examination; the proportions of those obtaining lenses were 30 per cent and 20 per cent, respectively. Visual acuity outcomes of low income vs non-poor enrollees were more adversely affected by enrollment in cost-sharing plans. Free care resulted in improved vision by increasing the frequency of eye examinations and lens purchases.
The persistent threat of lead: a singular opportunity.
Authors: Needleman H L
Published: November 2008

Recent data have demonstrated health effects of lead in children at doses previously believed to be harmless. Data from epidemiological studies in many countries, and from experimental studies of animals given lead, demonstrate psychological impairment at blood lead concentrations of 0.5-0.7 mumol/L. Current estimates are that 17 per cent of American children (3-4 million) exceed the level of 0.7 mumol/L. Lead exposure is not a problem for urban poor children alone, but inner-city minorities have a higher rate of exposure. The overabundance of lead coexists in the same area with two serious shortages: affordable housing and jobs. It is argued that a program to train unemployed inner-city residents in safe de-leading, while expensive, makes hygienic, economic, and common sense.
Longitudinal study of physical ability in the oldest-old.
Authors: Harris T , Kovar M G , Suzman R , Kleinman J C , Feldman J J
Published: November 2008

Based on 1984 data from the Longitudinal Study on Aging, one-third of White persons aged 80 or older living in the community (N = 1,791) were defined as having no difficulty in walking 1/4 of a mile, in lifting 10 pounds, in climbing 10 steps without resting, or in stooping, crouching or kneeling. Physical ability was associated with lower risk of death over two years mean follow-up; Relative odds (RO) = .4 (95 percent confidence interval = .4, .6) and in survivors, lower utilization of hospitals RO = .4 (CI = .3, .7), physicians RO = .6 (CI = .5, .8) and nursing homes RO = .3 (CI = .2, .5) compared with those having difficulty on any of the four functional measures included in the definition of physical ability. Fifty percent of the women and 42 percent of the men physically able at the time of the baseline survey in 1984 remained physically able at follow-up. Continued physical ability in this group was associated with never having had cardiovascular disease RO = 2.1, (CI = 1.2, 3.7), never having had arthritic complaints RO = 1.9 (CI = 1.2, 2.7), a body mass index less than the 75th percentile RO = 1.8 (CI = 1.2, 2.9), younger age (for each decade of age, RO = 2.0 (CI = 1.1, 3.6), and higher level of education (greater than 13 years versus 0-6 years) RO = 2.4 (CI = 1.2, 4.7). These correlates include factors amenable to preventive measures and highlight the need to consider the heterogeneity of the oldest-old in formulating programs aimed at prevention and postponement of disability.
Cost-effectiveness of antibiotic prophylaxis for dental procedures in patients with artificial joints.
Authors: Tsevat J , Durand-Zaleski I , Pauker S G
Published: November 2008

We performed a cost-effectiveness analysis to evaluate whether patients with artificial joints should take penicillin, erythromycin, or no antibiotics before dental procedures. We modeled the risk of anaphylaxis from penicillin, the risks and consequences of an artificial joint infection, and the actual variable costs of hospitalization and antibiotics. Penicillin prophylaxis is slightly less expensive than erythromycin prophylaxis but is both more expensive and less effective than no prophylaxis. Erythromycin prophylaxis, the most effective, is the most expensive strategy. The marginal cost effectiveness of erythromycin prophylaxis compared to no prophylaxis is $12,900 per quality-adjusted year of life saved. Sensitivity analysis demonstrates that the risk of developing a joint infection is the key parameter in the analysis. Based on our estimated risk of developing a joint infection, the cost-effectiveness of antibiotic prophylaxis with erythromycin compares favorably with other medical interventions. Thus, until a definitive study to quantify the risk is conducted, patients with artificial joints should take prophylactic erythromycin when they undergo dental procedures.
Excessive burden of end-state renal disease among Canadian Indians: a national survey.
Authors: Young T K , Kaufert J M , McKenzie J K , Hawkins A , O'Neil J
Published: November 2008

Analysis of data from the Canadian National Renal Failure Register indicates that Canadian Natives are at much higher risk for end-stage renal disease (ESRD) than the Canadian population in general. Using two population estimates for the total Native population, the age-standardized incidence rate of newly registered ESRD cases between 1981 and 1986 among Natives was at least 2.5 times (and may be as high as four times) the national rate. Natives were particularly at higher risk for ESRD to diabetes, glomerulonephritis, and pyelonephritis, whereas for the other causes the risk was no different from that of other Canadians. As technologically sophisticated treatment facilities are only available in major urban centers, Native ESRD patients and their families living in remote areas of Canada are faced with major psychosocial disruptions of relocation.
Survival analysis of hemophilia-associated AIDS cases in the US.
Authors: Stehr-Green J K , Holman R C , Mahoney M A
Published: November 2008

Using national hemophilia-associated AIDS (acquired immunodeficiency syndrome) surveillance data and the life table method of survival analysis, the median length of survival of hemophilic patients in the United States after the diagnosis of AIDS was 11.7 months; the cumulative probability of survival at one year was 49.2 +/- 2.0 percent; at two years, 28.9 +/- 2.3 percent. Patients 13-29 years of age at the time of diagnosis had the longest survival and those 60 years and older had the shortest. Patients diagnosed since 1986 survived longer than those diagnosed before 1986. Length of survival did not differ significantly by race, coagulation disorder, AIDS manifestation at the time of diagnosis, or region of residence. Seven patients survived more than 36 months after AIDS was diagnosed. These patients were similar to those surviving for a shorter duration except that they were more likely to have met only the 1987 revision of the Centers for Disease Control AIDS surveillance case definition (as opposed to the 1985 case definition). Results of this study suggest that survival among hemophilic patients after the diagnosis of AIDS is similar to that reported by other investigators for other AIDS risk groups, excluding patients with Kaposi's sarcoma.
Transmission of enteric disease associated with wastewater irrigation: a prospective epidemiological study.
Authors: Shuval H I , Wax Y , Yekutiel P , Fattal B
Published: November 2008

We conducted a prospective epidemiological study of possible enteric disease transmission by aerosolized pathogens from sprinkler irrigation of partially treated wastewater in 20 kibbutzim (collective agricultural settlements) in Israel between March 1981 and February 1982. Medical data were collected from the patients' files and daily logs of physicians and nurses at each kibbutz clinic (total population 10,231). Episodes of enteric disease were similar in the kibbutzim most exposed to wastewater aerosols (11.6 per 100 person-year) and the kibbutzim not exposed to wastewater in any form (11.0 per 100 person-year). No excess of enteric disease was seen among wastewater contact workers or their families as compared with the unexposed. No negative health effects were detected in this study which involved a large population, including many young children, exposed to treated wastewater aerosols generated at distances of 300-600 m.
The power of policy: the relationship of smoking policy to adolescent smoking.
Authors: Pentz M A , Brannon B R , Charlin V L , Barrett E J , MacKinnon D P , Flay B R
Published: November 2008

This study examined the effects of smoking policy on 4,807 adolescents in 23 schools over a two-county area in California. Amounts and prevalence rates of adolescent smoking were measured with a self-report survey and a biochemical measure; school smoking policy was measured with two independent surveys of school staff. Policy effects were evaluated with multiple and logistic regression analyses controlling for school-level socioeconomic status and environmental support for teaching and administration. Of the 23 schools, 100 percent had a formal written and regularly enforced policy component restricting student smoking on school grounds, 94 percent restricted students leaving school grounds, 65 percent restricted smoking near school grounds, and 57 percent had a smoking prevention education plan. Schools with policies having all four versus less than four components, high versus low emphasis on prevention, and a low versus high emphasis on cessation reported lower amounts of smoking in the last week and in the last 24 hours. Punitive consequences of policy violation had no effect. Results were compared to school staff observations of adolescent smoking, and school archival records of student smoking violations in the last year. Results suggest that school smoking policy is associated with decreased amounts of smoking in adolescents.
Education for AIDS prevention: not our only voluntary weapon.
Authors: Cates W , Bowen G S
Published: November 2008

Authorities frequently state that education is the "only" method we have to stop the AIDS (acquired immunodeficiency syndrome) epidemic until a vaccine and/or curative therapy is available. We suggest that education, while critically important to our efforts to stop transmission of the human immunodeficiency virus (HIV), needs to be bolstered by additional voluntary approaches. Control of parenteral drug use, prevention of ulcerative sexually transmitted diseases, provision of expanded contraceptive services to seropositive reproductive age women, and reinforcement of risk-reduction behaviors through extended follow-up interventions are required as well. The support of these voluntary programs is a necessary complement to educational approaches which impact on HIV transmission and eventually on the AIDS epidemic.
Psychological defenses and control of AIDS.
Authors: Archer V E
Published: November 2008

The well known psychological defenses of avoidance, repression, and denial against the knowledge that one has, or might have, a fatal disease used by a high percentage of individuals, must be considered in control programs for the human immunodeficiency virus (HIV). Current programs of education, voluntary testing, and counseling do not consider this defense mechanism and may therefore provide inadequate control. Compulsory HIV testing programs and development of an "HIV Parole" system may be needed if the current HIV epidemic worsens.
An outbreak of an enterovirus-like illness at a community wading pool: implications for public health inspection programs.
Authors: Lenaway D D , Brockmann R , Dolan G J , Cruz-Uribe F
Published: November 2008

In June 1987, following an outbreak of an illness among children participating in a swim class, investigation revealed that 26 children who had swum in the outdoor wading pool were more likely to be ill than those who had not (OR 12.1, 95% CI = 2.9, 74.2). The pool chlorination system was operating improperly prior to onset of illness and chlorine levels were at or very near zero. This report emphasizes the need for operators and inspectors to give special attention to disinfection of wading pools.
High prevalence of hepatitis B virus infection in rural black adults in Mseleni, South Africa.
Authors: Abdool Karim S S , Thejpal R , Singh B
Published: November 2008

A community-based study in northern Natal/KwaZulu, South Africa, assessed the prevalence of hepatitis B virus (HBV) infection in rural Black adults. The prevalence of HBV carriers was 4.4 percent in women (N = 342) and 7.1 percent in men (N = 99). At least one marker of HBV infection was present in 81 percent of women and 86 percent of men. The relative risk (RR) of HBV marker positivity in women due to scarification, adjusted for the presence of pierced ears, was 1.37 (95% CI = 0.9, 2.1). Risk factors such as scarification and pierced earlobes need to be further investigated to assess their role in the transmission of the HBV.
Evaluation of radiation safety in 29 central Ohio veterinary practices.
Authors: Moritz S A , Wilkins J R , Hueston W D
Published: November 2008

A sample of 29 veterinary practices in Central Ohio were visited to assess radiation safety practices and observance of state regulations. Lead aprons and gloves were usually available, but gloves were not always worn. Protective thyroid collars and lead glasses were not available in any practice, lead shields in only five practices, and lead-lined walls and doors in only two practices. Eighteen practices had none of the required safety notices posted.
Necrotizing enterocolitis mortality in the United States, 1979-85.
Authors: Holman R C , Stehr-Green J K , Zelasky M T
Published: November 2008

The Multiple Cause of Death Mortality data from the National Center for Health Statistics were analyzed to describe epidemiologic characteristics and trends in deaths related to necrotizing enterocolitis (NEC) among infants in the United States from 1979 to 1985. The average annual mortality rate (multiple cause mortality) for NEC was 13.1 deaths per 100,000 live births. NEC annual mortality rates decreased significantly during the study period for White and Black infants, male and female infants, and infants in the Northeast, North Central, and South regions. Black infants were approximately three times more likely to die from NEC than White infants, and the NEC infant mortality rate was highest in the South.
The impact of Medicaid on physician use by low-income children.
Authors: Rosenbach M L
Published: November 2008

This study evaluated the determinants of physician use by low-income children, with an emphasis on the effect of Medicaid. Data are from the 1980 National Medical Care Utilization and Expenditure Survey. Regression analysis revealed that Medicaid children were more likely than both privately insured and uninsured children to visit an office-based physician. Also, Medicaid children with at least one visit to any setting had a higher number of visits than uninsured children. Such factors as age, health status, number of children in the family, educational status, and income also accounted for differences within the low-income population. The results suggest that access to physicians' services (including office-based physicians) can be increased by expanding Medicaid eligibility to uninsured low-income children and by improving private health insurance benefits among the underinsured.
Maternal smoking during pregnancy: no association with congenital malformations in Missouri 1980-83.
Authors: Malloy M H , Kleinman J C , Bakewell J M , Schramm W F , Land G H
Published: November 2008

Using a multisource birth defects registry developed by the Missouri Center for Health Statistics for the years 1980-83, we examined the relation between maternal smoking during pregnancy and the occurrence of congenital malformations. There were 288,067 live singleton births in this data set of which 10,223 had one or more congenital malformations. When adjusted for potential confounders the odds ratio for congenital malformations in the infants of women who smoked during pregnancy was not increased (odds ratio = 0.98, 95% confidence interval = 0.94 - 1.03). We examined the relation between smoking and groups of malformations using the International Classification of Diseases, 9th Revision, as well as analyzing for certain specific malformations within each group and found no increased risk for infants of smokers.
Sample size and power based on the population attributable fraction.
Authors: Browner W S , Newman T B
Published: November 2008

Most methods for calculating sample size use the relative risk (RR) to indicate the strength of the association between exposure and disease. For measuring the public health importance of a possible association, the population attributable fraction (PAF)--the proportion of disease incidence in a population that is attributable to an exposure--is more appropriate. We determined sample size and power for detecting a specified PAF in both cohort and case-control studies and compared the results with those obtained using conventional estimates based on the relative risk. When an exposure is rare, a study that has little power to detect a small RR often has adequate power to detect a small PAF. On the other hand, for common exposures, even a relatively large study may have inadequate power to detect a small PAF. These comparisons emphasize the importance of selecting the most pertinent measure of association, either relative risk or population attributable fraction, when calculating power and sample size.
Caffeinated beverages and low birthweight: a case-control study.
Authors: Caan B J , Goldhaber M K
Published: November 2008

A case-control study, examining the effect of first trimester maternal caffeine consumption on low birthweight, was performed in the Kaiser Permanent Medical Care Program. Heavy consumption (greater than 3 servings/day) of coffee, cola and greater than 300 mg/day of caffeine from all sources (coffee, tea and cola) was associated with a marginally increased risk of low birthweight. Our data support previous findings of a modest effect of caffeine consumption on fetal growth.
Inappropriate comparisons of incidence and prevalence in epidemiologic research.
Authors: Flanders W D , O'Brien T R
Published: November 2008

Several epidemiologists have published papers in major medical journals in which they compare incidence rates and prevalence and use these comparisons to support conclusions regarding questions of major public health importance. Although these papers have been criticized in published correspondence, we believe that continued use and advocacy of such comparisons by some epidemiologists has created the need for a full discussion of this practice. In this commentary, we review basic differences between incidence and prevalence and show that direct comparison of these two measures is inappropriate for conceptual, theoretical, and practical reasons.
The selection and definition of targeted work-related conditions for surveillance under SENSOR.
Authors: Matte T D , Baker E L , Honchar P A
Published: November 2008

Lists of reportable conditions and case definitions are important tools for epidemiologic surveillance. As part of an initiative to encourage occupational disease surveillance systems linked to intervention at the state level, we have proposed a list of target conditions and are developing a set of standard epidemiologic case definitions. Experience gained from state health department pilot projects using SENSOR and other surveillance approaches will be used to promote effective condition-specific surveillance strategies on a wider scale.
Drinking water contamination and the incidence of leukemia: an ecologic study.
Authors: Fagliano J , Berry M , Bove F , Burke T
Published: November 2008

An ecologic study was performed to examine the relation between the incidence of leukemias and the occurrence of volatile organic chemical (VOC) contamination of drinking water supplies within a study area comprised of subpopulations differentially exposed to drinking water VOCs (trichloroethylene and related solvents). Populations served by community water supplies were classified into exposure categories according to VOC contamination status based on 1984-85 sampling data. Leukemia incidence data (1979-84) were collected from a population-based cancer registry. For females, the standardized incidence ratio was elevated only in towns in the highest of three exposure categories. No association was observed in males in any of the exposure categories. A Poisson regression analysis of the data, using finer exposure strata, indicated an increase in risk among females with increasing level of contamination which appeared to be distributed evenly across all age strata. The rate ratio for females at the highest exposure stratum for total non-THM VOCs compared to the least exposed stratum was 1.68. The observed association appears to suggest that drinking water contaminated with VOCs may increase the incidence of leukemia among exposed females, but caution is advised in the interpretation of these results because of the uncertainties inherent in ecologic studies.
Health status of migrant farmworkers: a literature review and commentary.
Authors: Rust G S
Published: November 2008

I made a computerized search of MEDLINE files from 1966 through October 1989 followed by a review of this literature. Four hundred eighty-five articles were scanned; 152 were found specifically related to migrant families, while another 51 articles addressed the health of agricultural workers or farmers in general. Solid data exist on dental health, nutrition and, to a lesser extent, childhood health. Data also were prominent in several disease categories including certain infectious diseases, pesticide exposures, occupational dermatoses, and lead levels in children. Estimates of the size of the migrant and seasonal farmworker population vary widely. Basic health status indicators such as age-related death rates are unknown. Prevalence rates of the most common cause of death in the United States have yet to be studied. More research is needed into the health problems and health status of migrant and seasonal farmworker families.
Crop duster aviation mechanics: high risk for pesticide poisoning.
Authors: McConnell R , Pacheco Antón A F , Magnotti R
Published: November 2008

A cross-sectional medical survey was conducted among 63 Nicaraguan aviation mechanics exposed to organophosphate and other toxic pesticides. Thirty-one (49 percent) reported having been acutely poisoned on the job. Also, seven of 14 novice mechanics, with less than one year on the job, reported that they had been poisoned. Thirty-eight (61 percent) had cholinesterase levels below the lower limit of normal, including three workers with levels less than 20 percent of the lower limit of normal. Risk factors for low cholinesterase included recent hire and recent poisoning. Workers did not use protective equipment, nor were there facilities for bathing on site. As a result of this survey, the government has prohibited the mixing and loading of pesticides at this airport and requires the washing of planes prior to maintenance work; coveralls and thin, pesticide impermeable gloves are to be issued to mechanics handling pesticide-contaminated parts. Closed system mixing and loading systems have been installed at satellite airstrips.
Leukemia incidence and radioactivity in drinking water in 59 Iowa towns.
Authors: Fuortes L , McNutt L A , Lynch C
Published: November 2008

Fifty-nine towns in Iowa with single source drinking water supplies were stratified on the basis of radium content in finished non-softened water to test the hypothesis of an association with total or acute myeloid leukemia. Fourteen towns had radium concentrations in drinking water exceeding the EPA safety limit of 5 picocuries per liter (pCi/L). A small increasing trend existed for total leukemia with increased radium content in drinking water that is in accordance with either the hypothesis of no effect or of a small effect.
Survey of occupational exposure of waste industry workers to infectious waste in Washington State.
Authors: Turnberg W L , Frost F
Published: November 2008

We surveyed 940 Washington state waste industry workers to evaluate occupational exposure to potentially infectious materials (response rate 47 percent). Only 26 percent were trained specifically to deal with safety hazards associated with medical waste. For the year preceding the survey, 50 percent of respondents reported having received cuts and scratches on the job, 22 percent reported direct contact with waste blood on their clothing or shoes, 8 percent had blood exposure on their skin, 3 percent blood exposure on their face or eyes, and 6 percent occupational hypodermic needlestick injuries (10 percent among waste collectors.
Sociodemographic correlates of neutralizing poliovirus and hepatitis A virus antibodies as markers of different modes of acquiring immunity.
Authors: Green M S , Cohen D , Slepon R , Handsher R , Zaaide Y , Rannon L , Danon Y
Published: November 2008

The prevalence and sociodemographic correlates of antibodies against poliovirus and hepatitis A virus (HAV) were compared in a random sample of 457 military recruits in Israel inducted during 1987. Lower socioeconomic status (SES) was associated with a higher prevalence of anti-HAV antibodies (67.3 vs 32.5 percent), whereas the reverse was true for type 1 poliovirus (78.4 vs 89.5 percent). While the high prevalence of anti-HAV antibodies observed in the lower SES groups reflects considerable natural exposure to enteroviruses, immunity against poliovirus appears to be determined primarily by compliance with vaccination.
Modeling the impact of breast-feeding by HIV-infected women on child survival.
Authors: Heymann S J
Published: November 2008

This study models the survival outcomes of children born to HIV-infected (human immunodeficiency virus) women who are breast-fed, bottle-fed, and wet-nursed. It is estimated that, given the relative risk of alternatives to maternal milk in developing countries, the probability of HIV transmission via breast milk would need to be at least .12 in a community with an under five child mortality rate from non-HIV causes of 100/1000 live births and at least .27 in a community with a rate of 200/1000 before alternative feeding practices should be recommended even to the known HIV-infected mother who has an available feeding alternative with a relative risk of 2:1. While such a low relative risk may be achievable with wet nursing, most studies report a relative risk of at least 3:1 for bottle feeding. A sensitivity analysis is conducted around the relative risk of child mortality from non-HIV causes associated with different feeding practices. While the critical transmission rate does not vary significantly with a rate of false positives as high as 20 percent on the HIV screening test, the critical transmission rate is very sensitive to the availability of HIV screening. In communities where the HIV prevalence rate among mothers reaches 40 percent, breast-feeding should still be recommended in the absence of HIV screening unless HIV transmission via breast milk surpasses 30 percent.
Clustering of atherogenic behaviors in coffee drinkers.
Authors: Puccio E M , McPhillips J B , Barrett-Connor E , Ganiats T G
Published: November 2008

We studied the clustering of coffee consumption and selected atherogenic behaviors in older adults living in a southern California community. Men were somewhat more likely to drink caffeinated coffee while women were more likely to drink decaffeinated coffee. In men, but not women, caffeinated coffee drinking decreased with age and decaffeinated coffee drinking increased. Caffeinated coffee drinkers drank more alcohol, consumed more dietary saturated fats and cholesterol, were more likely to be current smokers and less likely to be current exercisers than were non-coffee drinkers. Smoking and exercise also showed a dose-response relationship to the amount of caffeinated coffee consumed. Risk factor levels among drinkers of decaffeinated coffee were more like those of caffeinated coffee than non-drinkers. These data illustrate the clustering of atherogenic behaviors with coffee drinking and highlight their potential importance in interpreting the growing body of literature about coffee and health.
Development and validation of a food use checklist for evaluation of community nutrition interventions.
Authors: Kristal A R , Abrams B F , Thornquist M D , Disogra L , Croyle R T , Shattuck A L , Henry H J
Published: November 2008

We developed a new dietary assessment instrument, the Food Behavior Checklist (FBC), which measures food use related to adopting lower-fat and higher-fiber diets. The FBC is a simplification of the 24-hour diet recall that consists of 19 simple yes/no questions about foods consumed during the previous day. To develop the FBC, an expert committee generated a list of foods based on our intervention program, and we used focus groups and random-digit dialing pretests to refine the format and clarify items. To validate the FBC, we compared responses of 96 women on the FBC to information collected during a professionally administered 24-hour diet recall. For most items, agreement between the FBC and 24-hour recall, based on the kappa statistic, was good to excellent. Agreement was poor for items requiring detailed knowledge about food composition (e.g. high-fiber cereal). There was a trend to over-report general food categories (e.g. luncheon meats) but not specific food items (e.g. ice cream). In an embedded randomized study, we found that a set of introductory items designed to serve as a memory retrieval cue did not improve agreement between the FBC and 24-hour recall. These data provide preliminary evidence supporting the use of short checklist questionnaires on the previous day's food use as a means to assess diet at the group or community level. This relatively inexpensive and rapid measure can be used to inform the design of public health nutrition programs and as an evaluation tool in intervention research.
Food and nutrient intake differences between smokers and non-smokers in the US.
Authors: Subar A F , Harlan L C , Mattson M E
Published: November 2008

Data from the Second National Health and Nutrition Examination Survey were analyzed to determine food and nutrient intake differences between current smokers (also categorized as light, moderate, and heavy smokers) and non-smokers. Smokers in several age-race-sex categories have lower intakes of vitamin C, folate, fiber, and vitamin A than non-smokers, and intake tended to decrease as cigarette consumption increased, particularly for vitamin C, fiber, and folate. Smokers were less likely to have consumed vegetables, fruits (particularly fruits and vegetables high in vitamins C and A), high fiber grains, low fat milk, and vitamin and mineral supplements than non-smokers. A negative linear trend was found between smoking intensity and intake of several categories of fruits and vegetables. These data suggest that the high cancer risk associated with smoking is compounded by somewhat lower intake of nutrients and foods which are thought to be cancer protective.
Depressive mood, the single-parent home, and adolescent cigarette smoking.
Authors: Covey L S , Tam D
Published: November 2008

The association between depressive mood and cigarette smoking among adolescents was examined within a multivariate model. Subjects were 205 eleventh graders (123 boys and 82 girls) enrolled in a Northeast metropolitan public high school for science-oriented students. Logistic regression analysis showed an independent relation of depressive mood, friends' smoking behavior, and living in a single-parent home with cigarette smoking. Depression scores correlated with the number of cigarettes smoked. These associations suggest that depressive mood and stress may contribute to the onset of smoking.
A small area simulation approach to determining excess variation in dental procedure rates.
Authors: Diehr P , Grembowski D
Published: November 2008

All small area analyses need to compare the observed variability in rates to that expected by chance alone, but the expected variability is usually not known. This paper uses patient-level data for five dental procedures to simulate the distributions of the summary statistics that are usually generated in such studies. These statistics are found to vary greatly even under the "null hypothesis" that all dentists are using procedures at the same rates. The simulated dentist rates are compared to observed rates obtained in a different study. These findings illustrate problems that can occur in small area analysis studies, and emphasize the importance of using statistical techniques that are appropriate for the data that are to be analyzed. Investigators should make every effort to obtain patient-level data, or at least to understand the underlying distribution of the number of procedures per patient, to avoid mistaking significant deviations from an incorrect model as evidence for significant variation among small areas.
Behavioral covariates of waist-to-hip ratio in Rancho Bernardo.
Authors: Laws A , Terry R B , Barrett-Connor E
Published: November 2008

We examined lifestyle and dietary habits in 685 men and 943 women (mean age 67 years) who completed an interview, examination, and food frequency questionnaire in 1984-87. Waist-to-hip ratio increased with age and body mass index in both men and women. In multiple regression, waist-to-hip ratio was independently associated with smoking, alcohol consumption, and exercise in men, and with smoking and alcohol consumption in women. The data suggest that waist-to-hip ratio is affected, at least in part, by behavioral, and potentially modifiable, factors.
Garlic-in-oil associated botulism: episode leads to product modification.
Authors: Morse D L , Pickard L K , Guzewich J J , Devine B D , Shayegani M
Published: November 2008

In February 1989, three cases of botulism occurred in persons who consumed garlic bread made from a garlic-in-oil product. Testing of leftover garlic-in-oil showed it to have a pH of 5.7 and to contain high concentrations of Clostridium botulinum organisms and toxin. This was the second episode of botulism associated with a low acid garlic-in-oil product which needs constant refrigeration. In response, the Food and Drug Administration has taken steps to prevent a recurrence by requiring that microbial inhibitors or acidifying agents be added to such products.
Weekly food servings and participation in social programs among low income families.
Authors: Taren D L , Clark W , Chernesky M , Quirk E
Published: November 2008

Low income families were interviewed to determine factors related to the number of family food servings per week. A multiple regression model indicated that participation in WIC (supplemental food program for women, infants and children), household size, and number of different income sources were associated with more family food servings per week. Number of food servings per week decreased the last week of the month most often in families with younger members.
Epidemiology of reported cases of AIDS in lesbians, United States 1980-89.
Authors: Chu S Y , Buehler J W , Fleming P L , Berkelman R L
Published: November 2008

National surveillance data for reported cases of acquired immunodeficiency syndrome (AIDS) were used to assess demographic characteristics and behavioral risk factors in lesbians. From June 1, 1980 through September 30, 1989, 79 women with AIDS reported sex relations only with a female partner; most of these women (95 percent) were intravenous drug users. Prevention of human immunodeficiency virus (HIV) infection in the lesbian community will require efforts to prevent and reduce intravenous drug use.
Depressive symptoms and cigarette smoking among Latinos in San Francisco.
Authors: Pérez-Stable E J , Marín G , Marín B V , Katz M H
Published: November 2008

We administered the Center for Epidemiological Studies Depression (CES-D) Scale to 547 San Francisco Latinos as part of a random digit dialing telephone survey to evaluate smoking behavior. Both men and women current smokers had the highest mean CES-D levels (9.7 and 14.3, respectively). Logistic regression analysis adjusting for gender, acculturation, education, age, and employment showed that current smokers had an odds ratio of 1.7 (95% CI = 1.3, 2.2) for significant depressive symptoms compared to former smokers (OR = 1.1;95% CI = .8, 1.6) and never smokers (OR = 1).
HIV seroprevalence among male IVDUs in Houston, Texas.
Authors: Williams M L
Published: November 2008

HIV seroprevalence was 8.4 percent in a sample of 921 heterosexual male intravenous drug users in Houston, Texas who were not in drug treatment at the time of the study. Males who were Black, injected drugs daily, or had a history of syphilis had greater odds of being HIV positive than participants without those characteristics.
HIV seroconversion in two homosexual men after receptive oral intercourse with ejaculation: implications for counseling concerning safe sexual practices.
Authors: Lifson A R , O'Malley P M , Hessol N A , Buchbinder S P , Cannon L , Rutherford G W
Published: November 2008

Seroconversion for HIV antibody occurred in two homosexual men who reported no anal intercourse for greater than or equal to 5 years and multiple episodes of receptive oral intercourse with ejaculation. Neither man reported intravenous drug use or receipt of blood products. The last antibody-negative specimen was also negative by the polymerase chain reaction and p24 antigen assays. All sexually active persons should be clearly counselled that receptive oral intercourse with ejaculation carries a potential risk of HIV transmission.
The AIDS-related experiences and practices of primary care physicians in Los Angeles: 1984-89.
Authors: Lewis C E , Montgomery K
Published: November 2008

Telephone interviews of random samples of Los Angeles primary care physicians in 1984, 1986, and 1989 obtained information about their AIDS-related practice experiences, and sexual history taking. Data from mid-1989 reveal almost 74 percent have worked up at least one patient for AIDS or HIV infection in the past six months and 39.5 percent are caring for at least one patient with AIDS or AIDS-related complex. Self-reported use of appropriate sexual history questions has improved substantially over this five-year period.
Age, sex, and road-use patterns of motor vehicular trauma in Rhode Island: A population-based hospital emergency department study.
Authors: Rockett I R , Lieberman E S , Hollinshead W H , Putnam S L , Thode H C
Published: November 2008

Population-based hospital emergency department data on motor vehicle traffic trauma in Rhode Island, 1984-85, are analyzed by age, sex, and road-use status. Annualized rates of overall and severe trauma were 1,195 cases (95% confidence interval [CI] = 1,164, 1,225) and 102 cases (95% CI = 94, 111) per 100,000 population, respectively. Overall and severe rates peaked at ages 15-24 years. Male rate excesses were most pronounced for motor-cycle and pedal cycle trauma.
HIV seropositivity of needles from shooting galleries in south Florida.
Authors: Chitwood D D , McCoy C B , Inciardi J A , McBride D C , Comerford M , Trapido E , McCoy H V , Page J B , Griffin J , Fletcher M A
Published: November 2008

Needle/syringe combinations were collected from three shooting galleries in South Florida and tested for the presence of antibodies to HIV-1. Fifteen of 148 needles (10.1 percent) tested positive for HIV-1 antibody. Seropositivity rates did not vary by the day of the week of collection, nor by shooting gallery from which they were collected. When the needle appeared to contain blood residue, 20.0 percent were positive versus 5.1 percent with no blood residue. These findings suggest that needles/syringes used in shooting galleries are likely to serve as reservoirs and/or vectors of transmission of the HIV-1 virus, and that although visual inspection of the needle/syringe may be useful in lessening the chance for transmission, even the visually "clean" needles may result in transmission of infection.
Occupational and other exposures associated with male end-stage renal disease: a case/control study.
Authors: Steenland N K , Thun M J , Ferguson C W , Port F K
Published: November 2008

We conducted a case-control study of 325 men ages 30-69 who were diagnosed with end-stage renal disease (ESRD) between 1976 and 1984, and resided in four urban areas of Michigan in 1984. Cases were selected from the Michigan Kidney Registry and excluded men with diabetic, congenital, and obstructive nephropathies. Controls were selected by random-digit dialing and were pair-matched to cases for age, race, and area of residence. Telephone interviews were conducted with 69 percent of eligible cases and 79 percent of eligible controls. Risk of ESRD was significantly related to phenacetin or acetaminophen consumption (odds ratio(OR) = 2.66), moonshine consumption (OR = 2.43), a family history of renal disease (OR = 9.30); and regular occupational exposures to solvents (OR = 1.51) or silica (OR = 1.67). Particular occupational exposures with elevated risk were solvents used as cleaning agents and degreasers (OR = 2.50) silica exposure in foundries or brick factories (OR = 1.92), and silica exposure during sandblasting (OR = 3.83). Little or no trend of increased risk with duration of exposure was found for these occupational exposures, with the exception of silica in sandblasting. Limitations of these data include representativeness of cases, possible overreporting by cases, and misclassification of exposures inherent in self-reports.
Lead-induced anemia: dose-response relationships and evidence for a threshold.
Authors: Schwartz J , Landrigan P J , Baker E L , Orenstein W A , von Lindern I H
Published: November 2008

We conducted a cross-sectional epidemiologic study to assess the association between blood lead level and hematocrit in 579 one to five year-old children living near a primary lead smelter in 1974. Blood lead levels ranged from 0.53 to 7.91 mumol/L (11 to 164 micrograms/dl). To predict hematocrit as a function of blood lead level and age, we derived non-linear regression models and fit percentile curves. We used logistic regression to predict the probability of hematocrit values less than 35 per cent. We found a strong non-linear, dose-response relationship between blood lead level and hematocrit. This relationship was influenced by age, but (in this age group) not by sex; the effect was strongest in youngest children. In one year-olds, the age group most severely affected, the risk of an hematocrit value below 35 percent was 2 percent above background at blood lead levels between 0.97 and 1.88 mumol/L (20 and 39 micrograms/dl), 18 percent above background at lead levels of 1.93 to 2.85 mumol/L (40 to 59 micrograms/dl), and 40 percent above background at lead levels of 2.9 mumol/L (60 micrograms/dl) and greater; background was defined as a blood lead level below 1.88 mumol/L (20 micrograms/dl). This effect appeared independent of iron deficiency. These findings suggest that blood lead levels close to the currently recommended limit value of 1.21 mumol/L (25 micrograms/dl) are associated with dose-related depression of hematocrit in young children.
Effects of workplace smoking bans on cigarette consumption.
Authors: Borland R , Chapman S , Owen N , Hill D
Published: November 2008

A sample of staff working in the Australian Public Service (n = 2113) were surveyed two to four weeks before a mandated total ban on workplace smoking was introduced, and again five to six months later. Among the 391 smokers on whom complete data were available, the workplace smoking bans were associated with reduced rates of smoking, particularly among heavier smokers where the reduction in consumption was over 25 percent.
Demographic and dietary determinants of constipation in the US population.
Authors: Sandler R S , Jordan M C , Shelton B J
Published: November 2008

We investigated the association between self-reported constipation and several demographic and dietary variables in 15,014 men and women 12-74 years of age examined between 1971-75 during the first Health and Nutrition Examination Survey. Overall, 12.8 percent reported constipation. Self-reported constipation correlated poorly with stool frequency. Nine percent of those with daily stools and 30.6 percent of those with four to six stools/week, reported constipation. Constipation was more frequent in Blacks (17.3 percent), women (18.2 percent), and those over age 60 (23.3 percent); after adjusting for age, sex, and race it was more prevalent in those with daily inactivity, little leisure exercise, low income, and poor education. Constipated subjects reported lower consumption of cheese, dry beans and peas, milk, meat and poultry, beverages (sweetened, carbonated and noncarbonated), and fruits and vegetables. They reported higher consumption of coffee or tea. They consumed fewer total calories even after controlling for body mass and exercise.
Incentives and competition in a worksite smoking cessation intervention.
Authors: Jason L A , Jayaraj S , Blitz C C , Michaels M H , Klett L E
Published: November 2008

We evaluated a worksite smoking cessation program that employed multicomponents including support groups, incentives, and competition. The combination of incentives and other components increased participation rates to over 80%. Forty-two percent of smokers were abstinent at six months, compared to 13 percent of a control group (difference 29 percent, 95% CI 9, 49).
Suicide clusters: an examination of age-specific effects.
Authors: Gould M S , Wallenstein S , Kleinman M H , O'Carroll P , Mercy J
Published: November 2008

The age specificity of time-space clusters of suicide was examined using National Center for Health Statistics data for 1978-84. Significant clustering of suicide occurred primarily among teenagers and young adults, with minimal effect beyond 24 years of age. Clustering was two to four times more common among adolescents and young adults than among other age groups.
An evaluation of external cause-of-injury codes using hospital records from the Indian Health Service, 1985.
Authors: Smith S M , Colwell L S , Sniezek J E
Published: November 2008

To evaluate the usefulness of International Classification of Diseases external cause-of-injury and poisoning codes (E codes) for public health surveillance of nonfatal injuries, we analyzed E codes from Indian Health Service (IHS) hospital records. E codes for unknown or unspecified causes were used for 25 percent of records. At two hospitals, 63 percent of E codes assigned by independent coders agreed; another 18 percent matched on general cause-of-injury groups. With uniform guidelines and increased training, E coding could provide a valuable, cost-effective method of quantifying and characterizing severe, nonfatal injuries.