Table 2.

Hazard ratios of the Weibull models of mortality from 2002 to 2008

Variables	Model I		Model II		Model III		Model IV
	Hazard ratio	95% CI	Hazard ratio	95% CI	Hazard ratio	95% CI	Hazard Ratio	95% CI
Loneliness in 2002	1.14***	[1.06, 1.23]	1.13**	[1.05, 1.22]	1.12**	[1.03, 1.21]	1.07+	[.99, 1.17]
Married			.91	[.69, 1.21]	.93	[.70, 1.23]	.87	[.65, 1.15]
Relatives living nearby			.92	[.72, 1.17]	.92	[.72, 1.17]	.93	[.72, 1.19]
Friends living nearby			.86	[.66, 1.11]	.95	[.73, 1.24]	.91	[.70, 1.19]
Sleep quality poor					1.02	[.96, 1.08]	.94+	[.89, 1.00]
Physical exercise					.60***	[.47, .78]	.79+	[.61, 1.04]
Past smokera					1.37*	[1.06, 1.78]	1.30+	[1.00, 1.69]
Current smokera					1.57*	[1.06, 2.32]	1.46+	[.98, 2.17]
Depressive symptoms in 2002							.98	[.89, 1.07]
Self-rated health in 2002							.65***	[.57, .75]
Functional limitations in 2002							1.08**	[1.02, 1.13]
Age	1.09***	[1.08, 1.10]	1.09***	[1.07, 1.10]	1.09***	[1.07, 1.10]	1.08***	[1.07, 1.10]
Female	.49***	[.39, .62]	.48***	[.38, .61]	.50***	[.39, .65]	.50***	[.38, .64]
Blacka	.90	[.62, 1.30]	.90	[.62, 1.32]	.90	[.62, 1.31]	.78	[.54, 1.13]
Hispanica	1.09	[.69, 1.73]	1.09	[.69, 1.74]	1.06	[.67, 1.69]	1.02	[.64, 1.61]
Education	1.02	[.98, 1.06]	1.02	[.98, 1.06]	1.02	[.98, 1.07]	1.05*	[1.01, 1.09]
Household income (log)	.81***	[.73, .89]	.82***	[.74, .91]	.83***	[.74, .92]	.86**	[.77, .96]
Household assets (log)	.95**	[.91, .99]	.95*	[.92, .99]	.96*	[.92, 1.00]	.97	[.93, 1.01]
Chi-square	273.76		276.19		300.77		378.87
df	8		11		15		18

Note: N=2,101. Results are unweighted. Sobel test of the change in coefficient of loneliness from Model I to Model II is −.005 with bias corrected 90% CI=[−.021, .012], total mediated effect through social relationship variables is .005 with 90% CI=[−.004, .018]; the change in coefficient of loneliness from Model II to Model III is −.012 with 90% CI=[−.030, .007], total mediated effect through health behavior variables is .014 with 90% CI=[−.002, .035]; the change in coefficient of loneliness from Model III to Model IV is −.041 with 90% CI=[−.076, −.001], total mediated effect through health variables is .051 with 90% CI=[.016, .082].

^aReference categories are “Never smoked,” and “White or Others.”

⁺p < .1,

^*p < .05,

^**p < .01,

^***p < .001