. Author manuscript; available in PMC: 2018 Nov 1.

Published in final edited form as: J Obstet Gynecol Neonatal Nurs. 2017 Sep 5;46(6):804–813. doi: 10.1016/j.jogn.2017.07.011

Table 6.

Difference in Insomnia Symptoms by Perimenopausal Stage

	Late versus Early Perimenopause

Outcome Variable	Adjusted Odds Ratio	95% CI	Df²	p value
Sleep Latency (SL)	1.3	1.1,1.5	12.17	0.0005
WASO	1.4	1.2,1.5	30.57	<0.001
Early Morning Awakenings (EMA)	1.3	1.1,1.5	9.05	0.003
Sleep Quality (SQ)	1.3	1.2,1.5	19.83	<0.001

Notes. Dichotomized values operationalized by Diagnostic and Statistical Manual of Mental Disorders 5 criteria for diagnosable insomnia with symptoms reported ≥ 3 times per week over 2 week period. Adjusted odds ratio; adjusted for baseline insomnia symptom value.