Longitudinal Study of Insomnia Symptoms Among Women During Perimenopause.
Colleen Ciano, Tonya S King, Robin Redmon Wright and 2 others
PMID 28886339WHAT IT FOUND
Insomnia symptoms were common during perimenopause, reported by 31% at year one and 42% at year ten.
They were more frequent in late than early perimenopause, and night waking was the most common symptom.
Key findings
01At year one, 31% of women had insomnia symptoms; at year ten, 42% did.
02Late perimenopause had 1.3 times the adjusted odds of any insomnia symptom compared with early perimenopause.
03Poor sleep quality was reported by at least 18% of perimenopausal women during the ten-year study period.
STILL TO COME
How it was doneWhat they foundWhat it means for RNs
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What it does not show
The study measured insomnia symptoms, not insomnia disorder, because it did not assess daytime impairment. Sleep problems from obstructive sleep apnea, restless legs, circadian disorders, or sleep aids were not accounted for. Results were not adjusted for age, which can affect sleep. Sleep data were self-reported, so recall bias and misclassification are possible. As a secondary analysis, it could not control all confounders such as obesity, sedentary lifestyle, and normal ageing. The analysed sample changed over time because women who reached menopause were excluded, and 5.4% of data were missing.
Declared interests
The parent SWAN study was funded by the National Institutes of Health’s National Institute on Aging, National Institute of Nursing Research, and Office of Research on Women’s Health. The supplied text does not report author conflicts of interest.
The easy way to misread this
Do not conclude that late perimenopause causes insomnia disorder. The study reports self-reported insomnia symptoms and associations with perimenopausal stage, not a diagnosed disorder, because daytime impairment was not measured.