Diabetes Care, Vol 22, Issue 2 248-252, Copyright © 1999 by American Diabetes Association
Mortality and hormone-related exposures in women with diabetes
BE Klein, R Klein and SE Moss
Department of Ophthalmology and Visual Sciences, University of Wisconsin-Madison 53705-2397, USA.
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.