OBJECTIVE: Hormone-related events and exposures are related to mortality and especially to cardiovascular disease in women. We evaluated whether such exposures influenced risk in a well-defined group of women with diabetes. RESEARCH DESIGN AND METHODS: Women with younger- and older-onset diabetes who were identified during a population-based study were queried about number of pregnancies, age at menarche, use of oral contraceptives, use of estrogen replacement therapy, and menopausal status at examinations in 1984-1986. Analyses are limited to women aged > or = 18 years (n = 398 and 542 in those with younger- and older-onset diabetes, respectively). Cohort mortality was monitored carefully, and causes of death were abstracted from death certificates. RESULTS: There were 58 deaths in the first group and 338 deaths in the second group since the 1984-1986 examination. The number of pregnancies was significantly associated with all-cause mortality (hazard ratio, 0.96 [95% CI 0.92-1.00]) in older-onset women only. CONCLUSIONS: These data suggest and are compatible with the notion that the hormone exposures examined are unrelated to cardiovascular mortality in women with diabetes, with the exception of a minimal effect of the number of pregnancies in older-onset women. Whether there is a difference in these exposure-outcome relationships between women with diabetes and those without diabetes is uncertain and requires further investigation.

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