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OBJECTIVE To examine the fertility and pregnancy wastage rates in a group of presumably fertile couples. DESIGN Prospective observational study of 200 couples desiring to achieve pregnancy over 12 menstrual cycles coupled with pregnancy outcome follow-up. SETTING A university-based obstetrics and gynecological center. PATIENTS Personal interviews and(More)
Measures of semen quality are used as surrogate measures of male fertility in clinical andrology, reproductive toxicology, epidemiology, and risk assessment. However, only limited data are available to relate those measures to fertility. This prospective study with 210 reproductive-age couples was conducted to provide information on the value of semen(More)
OBJECTIVE We evaluated the performance of the food-frequency questionnaire (FFQ) administered to participants in the US NIH-AARP (National Institutes of Health-American Association of Retired Persons) Diet and Health Study, a cohort of 566 404 persons living in the USA and aged 50-71 years at baseline in 1995. DESIGN The 124-item FFQ was evaluated within(More)
This paper explores the roles of different levels of government in assisting the poor. Using a model incorporating utility interdependence, the paper first presents some theoretical results indicating how levels of poor relief vary with the extent of mobility of the poor under both centralized and decentralized systems of support. It then provides a survey(More)
OBJECTIVE To test whether changing a food frequency questionnaire (FFQ) on the basis of cognitive theory and testing results in greater accuracy. Accuracy was examined for 4 design issues: a) Grouping: asking about foods in a single vs multiple separate questions; b) different forms of a food: asking consumption frequency of each form of a food (eg, skim,(More)
OBJECTIVE To examine the relationships between hormone profiles and semen analysis measures and fertility in the male partners of presumed normal couples. DESIGN Prospective clinical study. SETTINGS Healthy volunteers in an academic research environment. PATIENT(S) One hundred forty-five reproductive age couples without known risk factors for(More)
Immunohistochemistry using a commercial polyclonal antibody for lyssavirus was applied to 39 archival cases of rabies. Paraffin blocks from 13 different species were available, including 3 dogs, 4 cats, 1 pig, 6 cattle, 4 horses, 1 llama, 7 skunks (Mephitis mephitis), 7 raccoons (Procyon lotor), 1 bat (Myotis species), 1 white-tailed deer (Odocoileus(More)
Objective: Some epidemiological studies suggest that diets high in fat, saturated fat, or cholesterol are associated with increased risk of lung cancer. Since meat consumption is correlated with the intake of saturated fat and cholesterol, we investigated the role of meat intake and cooking practices in relation to lung cancer risk. Methods: A(More)
In a population-based case-control study of women in Missouri (United States), most of whom were smokers, we obtained information on adult diet to evaluate the effects of dietary fats in relation to lung cancer risk. All newly diagnosed, primary lung cancer cases among women 35 to 84 years of age reported to the Missouri Cancer Registry from 1 January 1993(More)