Logistic regression models on associations between gender, sleep disturbances and nightmares at least three times a week.

Table 5: Logistic regression models on associations between gender, sleep disturbances and nightmares at least three times a week.

	Minimal multivariate logistic regression models (gender adjusted estimates)		Multivariate logistic regression model of all variables
	adj. OR	95% CI	adj. OR	95% CI
Gender (female)	-	-	3.05*	1.71-5.44
Frequent difficulties falling asleep (3x/week more than 30 min)	2.42*	1.57-3.74	0.91	0.51-1.60
Frequent awaking at night (3x/week or more often)	5.24*	3.56-7.71	2.49*	1.54-4.00
Frequent fitful sleep (3x/week or more often)	13.27*	8.71-20.23	8.24*	5.12-13.26
Frequent anxiety concerning going to bed (3x/week or more often)	26.57*	8.67-81.41	9.50+	2.54-35.58
GSE	0.88*	0.85-0.91	0.91*	0.87-0.94

* p < .001, ⁺ p < .01, ^# p < .05