Table 4. Odds ratio (OR) and 95%CI of long sleep duration according to demographic and socioeconomic conditions, chronic diseases, and well-being. Campinas, State of São Paulo, Brazil, 2014–2015.

Variable		≥ 9 hours
		Stage 1^a		Stage 2^b		Stage 3^c
		OR	95%CI	OR	95%CI	OR	95%CI
Sex
	Female	1		1		1
	Male	0.87	0.62–1.21	0.80	0.55–1.16	0.81	0.56–1.19
Age
	20 to 39	1		1		1
	40 to 59	0.46	0.29–0.74	0.47	0.28–0.78	0.45	0.28–0.74
	60 or more	0.55	0.33–0.91	0.56	0.32–0.98	0.53	030–0.93
Marital status
	Married/Living together	1		1		1
	Separated/Divorced	1.00	0.58–1.79	0.91	0.53–1.54	0.90	0.53–1.51
	Widowed	1.50	1.03–2.20	1.55	1.07–2.24	1.54	1.05–2.25
	Never married	0.98	0.59–1.62	0.89	0.55–1.43	0.86	0.53–1.40
Schooling (years)
	0 to 3	1		1		1
	4 to 8	1.09	0.72–1.65	0.99	0.64–1.53	1.02	0.67–1.54
	9 to 11	0.87	0.56–1.36	0.85	0.54–1.36	0.90	0.57–1.40
	12 or more	0.54	0.30–0.98	0.49	0.27–0.90	0.52	0.29–0.95
Income
	< 1 minimum wage	1		1		1
	1 to 2	0.84	0.61–1.15	0.82	0.58–1.15	0.83	0.58–1.17
	3 or more	0.49	0.29–0.85	0.46	0.26–0.81	0.47	0.26–0.85
Work
	Not working	1		1		1
	Working	0.39	0.28–0.55	0.38	0.27–0.53	0.40	0.28–0.56
Number of inhabitants in the residence
	1	1		1		1
	2	0.98	0.57–1,68	0.97	0.56–1.66	0.99	0.58–1.69
	3 or more	0.48	0.28–0.80	0.43	0.26–0.70	0.43	0.26–0.69
Number of chronic diseases
	None			1		1
	One			0.72	0.46–1.09	0.72	0.47–1.10
	Two			0.86	0.48–1.55	0.88	0.48–1.59
	Three or more			0.68	0.48–0.97	0.66	0.45–0.96
Time of happiness (last 4 weeks)
	Always/Most of the time					1
	Some of the time					1.18	0.77–1.80
	Hardly ever or never					2.07	1.23–3.48

Multinomial regression model analyzing all socioeconomic and demographic variables with p < 0.20 in bivariate analysis.

Multinomial regression model adjusted for sociodemographic variables.

Multinomial regression model adjusted for all variables of the table.