Frank E. Speizer

TL;DR: The Nurses' Health Study found no evidence to support the substantial reduction in risk of cataract among aspirin users as reported in several previous studies.

TL;DR: The smoking behavior of married female nurses, aged 30-55 years in 1976, revealed that the prevalence of smoking was similar among all birth cohorts and among nurses starting to smoke at earlier ages.

TL;DR: The use of exogenous sex hormones in relation to the risk of rheumatoid arthritis was examined in a cohort of married nurses 30-55 years of age followed since 1976 in the Nurses' Health Study, showing no protective effect of past use of oral contraceptives or replacement estrogens for RA.

TL;DR: The epidemiological data linking air pollution and lung cancer are derived from statistical associations concerning rates of cancer among urban and rural residents, migrant studies and studies of occupational groups exposed to effluents from fossil fuel combinations, but few are adequately adjusted for both relatively simple measures of cigarette smoking or the potentially more subtle effects of the duration of smoking.

TL;DR: The authors examined use of individual supplements of vitamins A, C, and E only and multivitamins in relation to risk of non-Hodgkin's lymphoma in prospective cohorts of 88,410 women in the Nurses' Health Study and of 47,336 men in the Health Professionals Follow-Up Study to find an increased risk among women appeared to be secondary to the use of multivitamin by the same persons.