Table 4. Multivariate relative risk (RR) with 95% confidence interval (CI) for deaths from all causes by Cox proportional hazards model in the two cohorts: rural and urban.

Variable	Rural		Urban
	RR	(95% CI)	RR	(95% CI)
Age
	1.09	(1.06, 1.13)*	1.09	(1.06, 1.12)*
Occupation
Salaried worker	1.00		1.00
Self-employed	1.28	(0.72, 2.27)	0.80	(0.55, 1.15)
Agriculture and forestry	0.72	(0.37, 1.39)	1.93	(0.46, 8.05)
No occupation	1.47	(0.54, 3.98)	0.94	(0.49, 1.80)
Education
Junior college and college or higher	1.00		1.00
Except above	4.39	(1.06, 18.21)*	1.07	(0.69, 1.64)
Marriage
Married	1.00		1.00
Except above	2.35	(1.22, 4.53)*	1.12	(0.64, 1.99)
Household
Per each additional person	0.95	(0.82, 1.09)	0.87	(0.76, 1.00)
Relatives
Often, sometimes	1.00		1.00
A few, never	0.62	(0.35, 1.11)	0.97	(0.64, 1.46)
Friends
Yes	1.00		1.00
No	0.80	(0.47, 1.35)	0.73	(0.50, 1.05)
Participation
Yes	1.00		1.00
No	1.60	(0.95, 2.71)	1.61	(1.10, 2.37)*
Religion
Yes	1.00		1.00
No	1.10	(0.34, 3.60)	0.84	(0.44, 1.60)
Neighborhood
Yes	1.00		1.00
No	0.58	(0.35, 0.97)*	1.00	(0.69, 1.45)
Smoking habit
Never	1.00		1.00
Former	2.02	(0.97, 4.23)	0.77	(0.45, 1.32)
Current	1.23	(0.63, 2.40)	1.15	(0.77, 1.72)
Alcohol consumption
Never, light	1.00		1.00
Heavy	1.51	(0.88, 2.60)	1.22	(0.82, 1.82)
Physical activity
Often, sometimes	1.00		1.00
Never	1.16	(0.67, 1.98)	1.14	(0.80, 1.64)
BMI, Body mass index
18.5≦BMI<25.0	1.00		1.00
BMI<18.5	1.87	(0.78, 4.48)	2.05	(1.21, 3.47)*
25.0≦BMI	0.86	(0.45, 1.63)	0.76	(0.47, 1.23)
Chronic diseases
No	1.00		1.00
Yes	1.71	(1.05, 2.80)*	1.47	(1.03, 2.10)*
Depression
Per each additional scaled score	1.07	(1.00, 1.15)	1.01	(0.96, 1.06)

* p<0.05