. 2008 Dec 1;31(12):1655–1662. doi: 10.1093/sleep/31.12.1655

Table 3.

Sociodemographic Correlates for Insomnia in Urban Areas (Logistic Regression Analysis)

	DIS		DMS		EMA
	Crude OR (95% CI)	Adjust OR (95% CI)	Crude OR (95% CI)	Adjust OR (95% CI)	Crude OR (95% CI)	Adjust OR (95% CI)
Age (years)
15–24	1.0	1.0	1.0	1.0	1.0	1.0
25–34	2.1 (0.9–4.8)	1.7 (0.7–3.9)	2.0 (0.9–4.5)	1.6 (0.7–3.5)	2.6 (0.8–8.0)	—
35–44	2.0 (0.9–4.5)	1.6 (0.7–3.6)	2.3 (1.1–4.9)^*	1.9 (0.9–3.9)	2.5 (0.8–7.3)	—
45–54	3.7 (1.7–7.8)^*	2.8 (1.3–6.1)^*	3.7 (1.8–7.5)^*	2.7 (1.3–5.7)^*	4.8 (1.7–13.6)^*	—
55–64	4.2 (1.9–9.0)^*	2.8 (1.3–6.0)^*	4.9 (2.4–10.1)^*	3.2 (1.5–6.8)^*	6.2 (2.2–17.6)^*	—
≥ 65	3.6 (1.7–7.6)^*	1.9 (1.3–2.3)	3.6 (1.8–7.4)^*	2.1 (1.01–4.6)^*	5.0 (1.7–14.0)^*	—
Sex
Men	1.0	1.0	1.0	1.0	1.0	1.0
Women	1.5 (1.2–2.0)^*	1.7 (1.3–2.3)^*	1.8 (1.4–2.3)^*	2.3 (1.7–3.1)^*	1.5 (1.2–2.1)^*	1.9 (1.4–2.8)^*
Marital status
Single	1.0	1.0	1.0	1.0	1.0	1.0
Married	1.5 (1.04–2.2)^*	—	1.5 (1.1–2.2)^*	—	2.1 (1.2–3.7)^*	—
Divorced/separated/widowed	2.6 (1.5–4.5)^*	—	2.6 (1.6–4.4)^*	—	3.7 (1.9–7.4)^*	—
Education level
College or above	1.0	1.0	1.0	1.0	1.0	1.0
Senior high school	0.7 (0.5–1.1)	—	0.6 (0.4–0.9)^*	0.7 (0.5–1.1)	0.9 (0.5–1.5)	1.01 (0.6–1.6)
Junior high school	1.2 (0.8–1.8)	—	1.04 (0.7–1.9)	0.8 (0.6–1.2)	1.1 (0.6–1.7)	0.7 (0.4–1.3)
Primary school	1.9 (1.1–3.1)^*	—	1.8 (1.2–2.9)^*	1.1 (0.7–1.7)	2.5 (1.4–4.5)^*	1.3 (0.7–2.3)
Illiterate	2.3 (1.3–4.1)^*	—	1.9 (1.1–1.3)^*	0.4 (0.2–0.7)^*	2.1 (1.1–4.4)^*	0.4 (0.2–0.9)^*
Employment status
Unemployed	—	—	1.4 (1.1–1.9)^*	—	—	—
Employed	1.0	1.0	1.0	1.0	1.0	1.0
Major medical condition(s)
Yes	2.2 (1.6–3.0)^*	—	2.5 (1.9–3.3)^*	—	2.6 (1.8–3.8)^*	—
No	1.0	1.0	1.0	1.0	1.0	1.0
Psychiatric disorder
Yes	6.4 (4.7–8.6)^*	5.9 (4.5–7.7)^*	6.1 (4.6–8.1)^*	6.8 (5.0–8.6)^*	6.7 (4.6–9.7)^*	7.4 (5.3–10.4)^*
No	1.0	1.0	1.0	1.0	1.0	1.0

Significant at the 0.05 level, two-sided test

Only significant OR(s) and 95% CI(s), and variables entered the final model are reported