Estrogen exposures and memory at midlife: a population-based study of women.

Estrogen loss after natural menopause is hypothesized to impair episodic memory. A total of 326 women aged 52 to 63 years participating in the Melbourne Women's Midlife Health Project completed a word list memory task. Estrogen exposures were inferred from menopausal status, time from final menstrual period, use of hormone therapy, serum estradiol concentration, and other indices. Memory did not vary significantly with most exposures. The authors conclude that episodic verbal memory assessed by word list learning is not substantially affected during the menopausal transition or in the years immediately after natural menopause.