Abstract
ObjectiveThis follow-up study aimed to evaluate risk factors for menopausal sleep disturbances already identifiable before menopause. MethodsAt baseline, all 81 women were premenopausal. At year-five follow-up, 27 of the women were premenopausal, 40 postmenopausal, and 14 postmenopausal and using hormone therapy. We used the Basic Nordic Sleep Questionnaire to study sleep; additional questionnaires evaluated risk factors for sleep impairment. ResultsSleep quality differed only marginally between the groups. The following baseline variables were associated with impaired sleep quality at follow-up: depressive symptoms increased the risk of nocturnal awakenings (OR 1.16 (95%CI 1.02–1.32), p=0.025), morning tiredness (OR 1.22 (95%CI 1.06–1.40), p=0.007), daytime tiredness (OR 1.24 (95%CI 1.06–1.44), p=0.007) and propensity to fall asleep during work or leisure time (OR 1.18 (95%CI 1.01–1.37), p=0.036). Personal crises increased the risk of longer sleep latency (OR 5.46 (95%CI 1.13–26.32), p=0.035) and of propensity to fall asleep when not active (OR 5.41 (95%CI 1.42–20.83), p=0.014). Use of medications affecting the CNS increased the risk of worse general sleep quality (OR 11.44 (95% CI 1.07–121.79), p=0.044). Perceived impaired general health (OR 2.87 (95%CI 1.04–7.94), p=0.043) and frequent night sweats (OR 10.50 (95%CI 2.25–49.01), p=0.003) increased the risk of difficulty falling asleep. ConclusionsVarious premenopausal health-related factors seem to predict poor sleep in menopausal transition. Menopause itself appears to have only minor effects. Thus, it is essential to identify high-risk women to allow timely interventions that may prevent the development of sleep disturbances at menopause.
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