bluuebunny/crossref_metadata_2025_split huggingface dataset:
Social class and diachronic trends in physique in young university women
Authors: Roberts D. F. , Dann T. C. 
Published: July 2008

SummaryIn a large sample of female students admitted to the University of Warwick in the period 1971–86, physique as measured by height, weight and ponderal index was examined in relation to family variables and socioeconomic class. Stature and weight both show a secular tendency to increase, and there is no indication of any slowing of rate. The different social classes do not participate equally in these trends, in a way that is difficult to reconcile with the attribution of the diachronic changes to simple improvement in environmental conditions. Maternal competence is suggested as a possible factor in the pattern of class difference.
Estimating energy and nutrient intakes in studies of human fertility
Authors: Ulijaszek Stanley J. 
Published: July 2008

SummaryTwo methods of dietary recording, the 24-hr recall and the weighed dietary intake methods, are considered appropriate for estimating energy and nutrient intakes in studies of human fertility. The former method gives lower estimates than the latter, although weighed intakes may underestimate true intakes. Examination of food intakes of pregnant, lactating, and non-pregnant, non-lactating New Guinean women shows their diet to be less homogeneous than is generally assumed for groups in developing countries. As a result direct observations of food intake for a limited number of days are not sufficiently accurate for the estimation of intake of most of the nutrients examined. Rather the study design should reflect the variability of intakes of the nutrients and groups under consideration.
The ecology of birth seasonality among agriculturalists in central Africa
Authors: Bailey Robert C. , Jenike Mark R. , Ellison Peter T. , Bentley Gillian R. , Harrigan Alisa M. , Peacock Nadine R. 
Published: July 2008

SummaryThe Lese are subsistence farmers living in the Ituri Forest of north-east Zaïre. They exhibit significant birth seasonality, with lowest frequencies of conception when food production is least, nutritional status is low and ovarian function, as measured by salivary steroid hormone levels, is reduced. Efe pygmy foragers, who live in the same geographical area but are less dependent on cultivated foods and have a more flexible life style, do not exhibit frequent fluctuations in nutritional status nor significant birth seasonality. These findings support a model of birth seasonality relating climatic variables to variation in fertility through a causal chain linking rainfall to food production to energy balance to ovarian function to fertility. The model, which emphasises an ecological approach to the study of human reproduction, should have broad applicability since seasonality of food production and energy balance is widespread geographically and across a wide variety of economies and cultures.
Effect of child survival on contraceptive use in Bangladesh
Authors: Chowdhury A. I. , Fauveau Vincent , Aziz K. M. A. 
Published: July 2008

SummaryA study in Bangladesh showed that couples who lost a child often stopped practising contraception in order to have another child. Logistic regression analysis revealed that contraceptive continuation was related to maternal age, parity, husband's education and the sex of the last child.
Estimating infant mortality rates prospectively in Honduras
Authors: Hubacher David , Bailey Patricia , Janowitz Barbara , Barahona Fidel , Pinel Marco 
Published: July 2008

SummaryIn order to determine the validity of infant mortality estimates based on retrospective reporting, the Honduran Ministry of Health carried out a follow-up survey of women interviewed in a 1987 national survey. Women were interviewed approximately 14 months after the baseline survey and were asked about the outcomes of their pregnancies and the survival status of their young children. The overall infant mortality rate calculated from the follow-up survey was lower than that obtained from the baseline survey, due to the particularly low rate among the group of women who were pregnant at the time of the baseline survey. Possible explanations for this low rate are discussed.
A hazard logit model analysis of covariates of childhood mortality in Matlab, Bangladesh
Authors: Bhuiya Abbas , Streatfield Kim 
Published: July 2008

SummaryIn a prospective study in Matlab, a rural area in Bangladesh, the relationship between a variety of covariates and childhood mortality was examined. Economic status of household, education of mother, sex of the children, health intervention programmes, age of mother, and live birth order of the children were identified as having a statistically significant impact on child survival when the effect of age was controlled. The effects of sex of the children, health programmes, age of mother, and birth order were found to be dependent on the age of the children, but the effect of mother's education was dependent on sex of the children.
Secular trends of twinning rate in Sweden
Authors: Högberg Ulf , Wall Stig 
Published: July 2008

SummaryThe change in parity and maternal age in Sweden accounts for the decline in the twinning rate from the 19th century to the middle of the 20th century. The later decline in twinning rate cannot be explained by changes in maternal age and parity. Fecundity appears to be higher in mothers of twins than in other mothers.
Socioeconomic factors affecting the longevity of the Japanese population: a study for 1980 and 1985
Authors: Uchida Eiichi , Araki Shunichi , Murata Katsuyuki 
Published: July 2008

SummaryThe effects of urbanisation, low income and rejuvenation of the population on life expectancy at birth and at 20, 40 and 65 years of age for males and females in Japan were examined twice, in 1980 and 1985. For males, urbanisation was the major factor determining life expectancy at birth and at age 20 years, and low income was the key determinant of decreased life expectancy except at 65 years of age. For females high income was the factor significantly decreasing life expectancy at 65 years of age in 1980, and rejuvenation of the population inversely influenced life expectancy except at birth in 1985. Life expectancy for all age groups in 1985 was significantly longer than in 1980 for both males and females.
Measurement of child mortality in association with a multipurpose birth certificate programme in the Southern Highlands Province of Papua New Guinea
Authors: Prybylski Dimitri , Alto William A. , Rogers Stephen , Pickering Helen 
Published: July 2008

SummaryA simple and inexpensive method for monitoring child mortality in association with birth registration was introduced into the Southern Highlands of Papua New Guinea. Eight thousand two hundred and one newborn infants were registered in 1988, approximately 77% of all children born in that year. The risk of death by age 2 was determined from reports given by the mother on the present status of a previously born child at the time of a recent delivery or during clinic registration of the current birth. This was 91 per 1000 for the province and corresponds to a risk of death by age 1 of 77/1000 by extrapolation using standard lifetables. This method was validated by comparison with a continuing demographic surveillance system covering 30,000 people in the western part of the province. The new birth certificate has been an incentive to increase supervised delivery rates and to generate a register that can be used to increase vaccination coverage.
Relations between fertility, body shape and menopause in Austrian women
Authors: Kirchengast Sylvia 
Published: July 2008

SummaryThe influence of number and date of pregnancies, births, and spontaneous and induced abortions on body shape, age at menopause and menopausal symptoms have been studied for 110 postmenopausal Viennese women. A significant correlation between fertility and age at menopause was not found, but several menopausal symptoms showed statistically significant correlations with fertility. With a higher number of pregnancies the individual symptoms became more severe.
Marriage, age at last birth and fertility in a traditional Moroccan population
Authors: Varea Carlos 
Published: July 2008

SummaryA sample of 842 rural women from Morocco (Amizmiz, Marrakech) was used to examine the relationship between a number of biosocial variables and fertility patterns. For women still in their reproductive years there were significant correlations between family size and woman's age, age at marriage and years of marriage. Among women with completed families, those with early age at marriage ceased childbearing about 10 years before reaching menopause, while women who married later continued to bear children until the end of their fertile life.
Do men grow to resemble their wives, or vice versa?
Authors: Sutton Graham C. 
Published: July 2008

SummarySixty-eight engaged couples, 113 newly weds, and 222 couples married for over 5 years, were studied for a number of physical, psychological and socioeconomic traits. The measurements were repeated a year later. Correlations were highest for age (r = 0·454, 0·903 and 0·888 respectively). They were also high for height (but not weight), neuroticism (but not extroversion), occupation, education, religion and smoking. Similarities were already present about the time of marriage, with little convergence or divergence. Thus, men do not grow to resemble their wives, nor vice versa.
Home–school differences in stress hormone levels in a group of Oxford primary schoolchildren
Authors: Long B. L. , Ungpakorn G. , Harrison G. A. 
Published: July 2008

SummaryTwenty-three girls and thirteen boys, aged between 4 and 9 years, gave urine samples which were measured by HPLC for adrenaline, noradrenaline, cortisol and cortisone on a school day and on a home day. Home levels of noradrenaline, cortisol and cortistone were consistently higher than school levels. Cortisol was positively correlated with adrenaline and noradrenaline at home, but not at school. These results may suggest that the school day represents a stimulating but comparatively structured environment with little negative affect, while the home day is characterised by stimulation but relative uncertainty in social interactions.
Influence of birth interval and child labour on family energy requirements and dependency ratios in two traditional subsistence economics in Africa
Authors: Ulijaszek Stanley J. 
Published: July 2008

SummaryThe consequences of different birth intervals on dietary energy requirements and dependency ratios at different stages of the family lifecycle are modelled for Gambian agriculturalists and !Kung hunter–gatherers. Energy requirements reach a peak at between 20 and 30 years after starting a family for the Gambians, and between 15 and 20 years for the !Kung. For the Gambians, shorter birth interval of 30 months. For the !Kung, the lack of participation in subsistence activities by children gives an output:input ratio in excess of that reported in other studies, suggesting that they are in a state of chronic energy deficiency.
Genetic distance estimated through surname frequencies of 37 counties from the state of Lara, Venezuela
Authors: Rodríguez-Larralde Alvaro 
Published: July 2008

SummaryGenetic distances between all possible pairs of counties (n = 37) in the state of Lara, Venezuela were calculated using surname frequencies and the Euclidean distance as estimator. In general, Euclidean distances were smaller between counties closer together, and the product moment correlation between geographic and Euclidean distances was 0·49 (p < 0.02). The results suggest that, in Lara, geographic distance has been an important determinant of genetic structure, although topography and roadways also have had an important influence upon this structure.
Trends in consanguineous marriage in Karnataka, South India, 1980–89
Authors: Bittles A. H. , Coble J. M. , Rao N. Appaji 
Published: July 2008

SummaryAnalysis of data on 106,848 marriages in the cities of Bangalore and Mysore, South India, between 1980 and 1989 showed that levels of consanguineous marriage varied between cities through time and by religion. The average coefficient of inbreeding was higher in Bangalore (F= 0·0339) than in Mysore (F= 0·0203), principally reflecting large-scale, post-Independence rural migration into Bangalore. Although there was some evidence of a decline in consanguineous marriages in Mysore, there was no convincing support in either city for earlier projections of a rapid reduction in the popularity of unions between close biological relatives.
Breast-feeding patterns in the Philippines: a prospective analysis
Authors: Zohoori Namvar , Popkin Barry M. , Fernandez Maria E. 
Published: July 2008

SummaryData from the Cebu Longitudinal Health and Nutrition Survey have been used to examine breast-feeding patterns in the Metropolitan Cebu region of the Philippines. The results show that there is extensive and early use of non-nutritive liquids, resulting in low levels of exclusive breast-feeding. The use of cross-sectional versus longitudinal data, the definition of exclusive breast-feeding, and movements in and out of the exclusively breast-fed category, are considered.
Analysis of birth intervals in India's Uttar Pradesh and Kerala states
Authors: Singh K. K. , Suchindran C. M. , Singh Vipin , Ramakumar R. 
Published: July 2008

SummaryLife tables of birth intervals and median birth intervals in two Indian states, Uttar Pradesh and Kerala, were computed for several subgroups of the study population. Multivariate hazards modelling technique was used to examine the net effect of each of the variables studied. The results show a substantial effect of socioeconomic variables in child-spacing after controlling for the major intermediate variables.
Estimates of adult mortality in Burundi
Authors: Makinson Carolyn 
Published: July 2008

SummaryAdult mortality in Burundi during the 1970s and 1980s is estimated using data from the 1987 Demographic and Health Survey (DHS). Estimates from traditional indirect methods are compared with those from the inter-survey method using data on the number of years since the respondent's parent died. Life expectancy at birth was estimated as 48.55 years for males and 51·23 years for females.
Factors responsible for childhood mortality variation in rural Ethiopia
Authors: Mammo Abate 
Published: July 2008

SummaryThis paper uses the 1981 National Rural Demographic Survey to document childhood mortality variations in rural areas of Ethiopia. Four significant findings are highlighted. (1) Health status of parents is identified as an important determinant of childhood mortality. (2) Religion, region of residence and ethnicity interact in their effects on childhood mortality and the effect of ethnicity varies in different regions for the same religion; in some areas ethnicity may serve as a proxy for economic and cultural differences. (3) Childhood mortality is inversely related to literacy status of parents, which may also reflect socioecomic status. (4) The data show a clear difference in childhood mortality between the famine-prone areas and the rest.
Diffusion of a particular 4.1(−) hereditary elliptocytosis allele in the French northern Alps
Authors: Brunet G. , Ducluzeau M. T. , Roda L. , Lefrancois P. , Baklouti F. , Delaunay J. , Robert J. M. 
Published: July 2008

SummaryHeterozygous 4.1(−) hereditary elliptocytosis results from the absence of one haploid set of protein 4.1, a major component of the red cell skeleton. Two successive epidemiological investigations revealed fifteen probands in the French Northern Alps. The frequency of this disease seems to be very high in four small villages isolated in the Aravis mountains. The genealogical study shows that eleven probands share common ancestors who lived eight or ten generations ago in these villages. Thus there was probably a founder effect from one pair of ancestors, strengthened by endogamy. In contrast, four probands originate from another area and are not genealogically related. Recent results in molecular genetics support the present data.
Family background, cognitive abilities, and personality as predictors of education and occupational attainment across two generations
Authors: Nagoshi Craig T. , Johnson Ronald C. , Honbo Kelly Ann M. 
Published: July 2008

SummaryThis study reports on the relative influences of parental attainment and cognitive ability and subjects’ own cognitive ability, personality, and social attitudes on the educational and occupational attainments and incomes of 183 Generation 3 subjects of Caucasian ancestry and 186 of Japanese ancestry originally tested in 1972–76 in the Hawaii Family Study of Cognition (HFSC) and re-tested in 1987–88. In contrast to earlier reports of sex differences in the influence of Generation 2 attainment and on Generation 3 attainment when these offspring were younger, family background had a trivial influence and own cognitive ability had a substantial influence on educational attainment for both racial/ethnic groups and both sexes. For income, however, own cognitive ability was only a significant predictor for male subjects. Within-family correlational analyses also supported this sex difference in influences on attainment.
Factors influencing infant mortality in Vietnam
Authors: Swenson Ingrid E. , Thang Nguyen Minh , San Pham Bich , Nham Vu Qui , Man Vu Duy 
Published: July 2008

SummarySelected determinants of overall infant mortality in Vietnam were examined using data from the 1988 Vietnam Demographic and Health Survey, and factors underlying neonatal and post-neonatal mortality were also compared. Effects of community development characteristics, including health care, were studied by logistic regression analysis in a subsample of rural children from the 1990 Vietnam Accessibility of Contraceptives Survey.Infant neonatal and post-neonatal mortality rates showed comparable distributions by birth order, maternal age, pregnancy intervals, mother's education and urban–rural residence. Rates were highest among first order births, births after an interval of less than 12 months, births to illiterate mothers and to those aged under 21 or over 35 years of age. Logistic regression analysis showed that the most significant predictor of infant mortality was residence in a province where overall infant mortality was over 40 per 1000 live births. In the rural subsample, availability of public transport was the most persistent community development predictor of infant mortality. Reasons for the low infant mortality rates in Vietnam compared to countries with similar levels of economic development are discussed.
Selected determinants of fertility in vietnam: age at marriage, marriage to first birth interval and age at first birth
Authors: Luc Nguyen , Thang Nguyen Minh , Swenson Ingrid , San Pham Bich 
Published: July 2008

SummaryData from the 4172 women aged 15–49 interviewed in the 1988 Vietnamese Demographic and Health Survey were used to examine age at marriage, marriage to first birth intervals and age at first birth. Differences between urban and rural areas, northern and southern provinces and by education of the women were analysed.The majority of the women had their first birth before age 20, but women with secondary education had a significantly higher age at first birth than those with little or no education, and women from the north had a significantly higher age at first birth than women from the south. Rural women and those with little or no education married at significantly younger ages than urban women and those with secondary education; these education effects were confirmed in a rural subsample of women. Women from rural areas and from the north had significantly shorter marriage to first birth intervals than urban women and those from the south, but there were no significant effects related to education.
Survival in the perinatal period: a prospective analysis
Authors: Popkin Barry M. , Guilkey David K. , Schwartz J. Brad , Flieger Wilhelm 
Published: July 2008

SummaryA prospective study of 3080 Filipino mothers and non-twin births in 33 communities is used to study the determinants of mortality in week 1 postpartum. The results show significant nonlinear birth weight effects and the importance of environmental contamination, particularly for infants born by traditional methods at home, and several other intermediate and underlying determinants of perinatal mortality. The pathways through which important sociodemographic factors affect perinatal mortality are also presented.
Teenage sexual activity in Zambia: the need for a sex education policy
Authors: Pillai Vijayan K. , Yates Donald L. 
Published: July 2008

SummaryData from a study of teenage sexual activity among secondary school girls show the need for a sex education policy as a first step in controlling teenage fertility in Zambia. A large proportion of teenage females enter into close relationships with males at young ages and a high proportion of young females have engaged in sexual intercourse. Most of these sexually active females do not use family planning methods even though a large proportion of them have heard of modern methods. The teenagers receive very little sex education from their parents and a modern institutional sex education programme is needed.
Secular changes in migration between birth and marriage
Authors: Brennan Ellen R. 
Published: July 2008

SummaryAlthough recent historic studies have shown high rates of population turnover prior to, during and after the demographic transition, little is known about the causes and consequences of migration, particularly during late adolescence when migration rates are highest. This paper assesses the relationship (a) between socio-occupational mobility and premarital migration patterns and (b) between these measures of mobility and family formation. Linked vital data for ever-married cohorts born between 1855 and 1974 on Sanday, Orkney Islands, Scotland, provided an opportunity for evaluation of changes in (1) distance migrated between birth and marriage and (2) age at marriage in a small rural isolate characteristic of other populations undergoing modernization. Measures of socio-occupational mobility indicated a secular increase in upper social classes and in labour force participation, particularly in non-agricultural sectors of the economy. Migration distance between birth and marriage decreased over time, associated with a convergence in the pattern of spatial mobility between population subgroups. Whereas there was little relationship between age at marriage and measures of spatial and socio-occupational mobility, changes in migration were strongly influenced by opportunities which differed between social classes and between agricultural and non-agricultural sectors of the island economy.
Family type and fertility in rural India: a critical analysis
Authors: Vlassoff Carol , Vlassoff Michael 
Published: July 2008

SummaryThis paper, based on data from two independent but concurrent studies, seeks to show that the explanation for the inconclusive results concerning fertility and family type in India lies in the failure of previous researchers to take account of an important intervening variable, the family life cycle. Fertility levels are examined in nuclear and joint families in a village in Western India and changes in relationships at different stages in the family cycle are considered. The most important conclusion is that aggregate level observations which indicate that fertility varies according to family type are misleading. When other relevant factors such as age or stage in the family life cycle are controlled, there is little evidence of any intrinsic connection between fertility and family type.