Annals of epidemiology
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Annals of epidemiology · Sep 2004
Comparative StudyEndogeneity bias in the absence of unobserved heterogeneity.
To demonstrate that endogeneity bias can still arise even when no unobserved heterogeneity exists. ⋯ Endogeneity bias can still occur even when unobserved heterogeneity is not present.
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Annals of epidemiology · May 2004
Descriptive epidemiology of health problems in Vaslui district, Romania.
To describe the characteristics of morbidity in one district of Romania and to identify specific priority areas for preventive measures or further research. ⋯ The results suggest a number of prevention priorities amongst Vaslui residents such as respiratory diseases especially in children less than 1 year of age and adults over 65 years, chronic cardiovascular diseases in adults or digestive diseases in the whole population. This work can be used as a starting point for other observational studies on health information systems as well as on broader determinants of health within this community.
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Annals of epidemiology · Apr 2004
Randomized Controlled Trial Clinical TrialDietary change in an intervention trial of wheat bran fiber and colorectal adenoma recurrence.
The objectives of this study were to determine whether participants in the Wheat Bran Fiber (WBF) trial exhibited changes in diet over time, and whether these changes were differential by assigned treatment group. ⋯ Although differential dietary intake was not appreciable in the WBF trial, participants exhibited longitudinal changes. Future intervention studies should carefully monitor dietary changes during the trial with multiple dietary assessment tools to assess potential secular and treatment-related diet changes.
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Annals of epidemiology · Apr 2004
Comparative StudyRacial disparity in pregnancy-related mortality following a live birth outcome.
African-American women have a 2- to 4-fold increased risk of pregnancy-related death compared with Caucasian women. We conducted this study to determine if differences in a combination of socioeconomic and medical risk factors may explain this racial disparity in pregnancy-related death. ⋯ Our analysis confirms that there is a strong association between race and pregnancy-related death, even after adjusting for potential predictors and confounders.
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Annals of epidemiology · Jul 2003
Prevalence of dementia in three ethnic groups: the South Florida program on aging and health.
To determine the prevalence of cognitive impairment and dementia in a multi-ethnic community, we examined a population sample of 2,759 elderly (65 years of age and older) African American, Hispanic-Cuban and white non-Hispanic men and women of Dade County, Florida. The Short Portable Mental Status Questionnaire (SPMSQ) was used as a screening test. The prevalence of cognitive impairment for African American men was 17.0% and women 16.7%; Cuban men 9.4% and women 11.4%; and white non-Hispanic men 9.0% and women 8.5%. ⋯ More than two thirds of all dementia cases had AD, and among white non-Hispanics, women had double the prevalence of AD among men (10.9% vs. 5.4%). The prevalence of AD among African American men was more than two and a half times greater than the prevalence among white non-Hispanic men (14.4% vs. 5.4%). Age (p = 0.001), family history of AD (p = 0.02) and African American (p = 0.0001) or Cuban (p = 0.006) ethnic group were directly and independently associated with the prevalence of AD.