Table 2.

Relative hazards of subsequent mortality by sleep duration (per day) and vegetable consumption, CLHLS, the 2008–2014 panel

	Model I	Model II	Model III	Model IV	Model V
Sleeping hours/day
≤ 5 h (7–8)	1.18***		1.15***	1.15***	1.08*
6 h (7–8)	1.14***		1.13**	1.12**	1.08*
9 h (7–8)	1.06		1.07	1.08	1.09+
≥ 10 h (7–8)	1.30***		1.29***	1.27***	1.18***
Frequency of vegetable consumption
High (low)		0.78***	0.80***	0.82***	0.91*
Covariates
Demographics
Age (mean, years)	1.08***	1.08***	1.07***	1.07***	1.06***
Men (women)	1.24***	1.25***	1.34***	1.44***	1.52***
Urban (rural)	0.88***	0.89***	0.94*	0.97	0.93**
Socioeconomic factors
1+ years of schooling (0)			0.95	0.97	1.02
Economic independence (no)			0.71***	0.77***	0.78***
Professional occupation (no)			1.09+	1.11*	1.07
Access to healthcare (no)			0.90**	0.91*	0.95
Family/Social support
Currently married (no)				0.80***	0.81***
Close proximity to children (no)				1.09*	1.07*
Health practice
Doing regular exercise (no)				0.92*	0.96
Currently smoking (no)				0.69***	0.78***
Health condition
ADL disabled (no)					1.60***
Cognitively impaired (no)					1.47***
Self-reported good health (no)					1.16***
N (observations)	20,774	20,774	20,774	20,774	20,774
-log likelihood	15,763.3***	15,997.0***	15,681.2***	15,566.0***	15,209.9***

Note: Relative hazards were obtained from parametric survival analyses. The category of each variable in the parentheses is the reference group of that variable. ***p < 0.001, **p < 0.01, *p < 0.05, +p < 0.1