Table 3. The odds ratio of poor self-rated health by long working hours stratified by equivalised household income^a .

Equivalised household income		Weighted prevalence of poor self-rated health (%)		Crude ORb		Model 1c		Model 2d		Model 3e
		< 52 hours a week	≥ 52 hours a week	OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI
Overall		11.7	14.1	1.24	1.05–1.45	1.30	1.09–1.54	1.22	1.017–1.458	1.17	0.98–1.41
Subgroups for income
	Low	19.2	17.1	0.86	0.44–1.70	0.96	0.46–1.99	0.88	0.410–1.896	0.88	0.41–1.87
	Low-medium	13.0	13.1	1.00	0.73–1.37	1.09	0.79–1.50	1.05	0.753–1.465	0.97	0.69–1.37
	Medium-high	12.2	14.1	1.18	0.89–1.57	1.28	0.95–1.73	1.21	0.887–1.644	1.17	0.86–1.59
	High	10.0	14.5	1.52	1.16–1.99	1.58	1.19–2.08	1.52	1.138–2.039	1.46	1.09–1.97

^aThe participants who worked < 52 hours a week were considered as a reference group.

^bCrude odds ratio was calculated by logistic regression.

^cModel 1: Adjusted for age, sex, and marrital status.

^dModel 2: Adjusted for age, sex, marrital status, education, occupation, employment status, and shiftwork.

^eModel 3: Adjusted for age, sex, marrital status, education, occupation, employment status, shiftwork, smoking, drinking, hypertension, diabetes, and depression.