In this task, you are given a passage which has a question and the context. You have to generate an answer to the question based on the information present in the context.

Context: Dynamic pelvic magnetic resonance imaging (DP-MRI) offers a comprehensive evaluation of pelvic organ structure in addition to functional information regarding evacuation. Opportunity to apply this technology can be limited due to regional lack of availability. Ideally, clues from standard anorectal testing could predict abnormalities on DP-MRI, leading to its efficient use. The aim of this study is to determine whether high-resolution anorectal manometry (HR-ARM) correlates with findings on DP-MRI.', "This is a retrospective study of HR-ARM performed on patients with constipation who also underwent DP-MRI. Studies were reviewed for significant findings including posterior pelvic organ prolapse, rectocele>3cm, rectal intussusception, and anorectal angle. Statistical analysis was performed using Pearson's correlation coefficient, Student's t-test, and Fisher's exact test.", 'Twenty-three patients undergoing HR-ARM (age range 25-78) also underwent DP-MRI. All were female; 76% were Caucasian. Twenty had significant structural findings: small pelvic prolapse (n=2), moderate pelvic prolapse (n=10), large pelvic prolapse (n=9), rectocele (n=8), or rectal intussusception (n=3). Only intrarectal pressure on HR-ARM weakly correlated with size of rectocele (r=0.46; P=0.03) and degree of pelvic organ prolapse (r=0.48; P=0.02). The remainder of the HR-ARM parameters did not significantly correlate with DP-MRI findings. Patients with dyssynergy were not more likely to have rectoceles>3cm (44.4% versus 35.7%; P=0.5) or large prolapses (44.4% versus 50%, P=1.0), compared with those without dyssynergy, on HR-ARM.\Question: Are high-resolution anorectal manometry and dynamic pelvic magnetic resonance imaging complementary technologies?
We were unable to find a correlation between HR-ARM findings and structural pelvic defects on DP-MRI. Therefore, these two technologies provide complementary information in the evaluation of defecatory dysfunction.

Context: One anesthesiologist performance metric is the incidence of "prolonged" (15 min or longer after dressing complete) times to extubation. The authors used several methods to identify the performance outliers and assess whether targeting these outliers for reduction could improve operating room workflow.', "Time to extubation data were retrieved for 27,757 anesthetics and 81 faculty anesthesiologists. Provider-specific incidences of prolonged extubation were assessed by using unadjusted frequentist statistics and a Bayesian model adjusted for prone positioning, American Society of Anesthesiologist's base units, and case duration.", '20.31% of extubations were "prolonged," and 40% of anesthesiologists were identified as outliers using a frequentist approach, that is, incidence greater than upper 95% CI (20.71%). With an adjusted Bayesian model, only one anesthesiologist was deemed an outlier. If an average anesthesiologist performed all extubations, the incidence of prolonged extubations would change negligibly (to 20.67%). If the anesthesiologist with the highest incidence of prolonged extubations was replaced with an average anesthesiologist, the change was also negligible (20.01%). Variability among anesthesiologists in the incidence of prolonged extubations was significantly less than among other providers.\Question: Is prolonged Operative Time to Extubation a Useful Metric for Comparing the Performance of Individual Anesthesia Providers?
Bayesian methodology with covariate adjustment is better suited to performance monitoring than an unadjusted, nonhierarchical frequentist approach because it is less likely to identify individuals spuriously as outliers. Targeting outliers in an effort to alter operating room activities is unlikely to have an operational impact (although monitoring may serve other purposes). If change is deemed necessary, it must be made by improving the average behavior of everyone and by focusing on anesthesia providers rather than on faculty.

Context: The hypothesis that paraoxonase (PON1) has a role in preventing atherosclerosis is based on experimental, transgenic, and case-control studies but has not previously been tested prospectively.', 'The Caerphilly Prospective Study is a cohort study of men aged 49 to 65 years observed for coronary heart disease (CHD) events (fatal and nonfatal myocardial infarction) over a mean period of 15 years. Serum PON1 activity toward paraoxon was measured in 1353 participants. PON1 activity was 20% lower in the 163 men who had a coronary event (P=0.039). Men in the highest quintile of PON1 activity had a decreased risk compared with those in the lowest quintile (OR 0.57 [95% CI, 0.33 to 0.96]). The inverse relationship between quintiles of serum PON1 activity and CHD risk was graded, the median change in OR across each quintile being 0.87 (0.77 to 0.98). After adjustment for all other CHD risk factors, including HDL cholesterol, this median value became 0.90 (0.78 to 1.02). PON1 was most predictive of a new CHD event in patients at highest risk by virtue of preexisting CHD (adjusted median OR for each quintile, 0.74 [0.59 to 0.93]; n=313) or the presence of other risk factors. For the highest tertile of CHD risk (n=390) calculated by the Framingham equation, adjusted median OR for each quintile was 0.84 (0.66 to 1.05); n=390.\Question: Does low paraoxonase activity predict coronary events in the Caerphilly Prospective Study?
Low serum PON1 activity toward paraoxon is an independent risk factor for coronary events in men at high risk because of preexisting disease or other CHD risk factors.