Mortality from suicide and other external cause injuries in China: a prospective cohort study

BMC Public Health

Table 3 Multivariable Adjusted Relative Risk of Suicide and Other External Cause Injuries in China, 1991-1999*

Sociodemographic characteristics	Suicide (n = 197)			Other external cause (n = 591)
	Multivariable adjusted			Multivariable adjusted
	RR	95% CI	p-value	RR	95% CI	p-value
Sex
Female	1.00	reference		1.00	reference
Male	1.56	1.03-2.38	0.04	2.50	1.95-3.20	<0.0001
Age (years)
40-49	1.00	reference		1.00	reference
50-59	0.90	0.58-1.41	0.65	1.11	0.85-1.45	0.47
60-69	1.11	0.67-1.84	0.69	1.93	1.45-2.58	<0.0001
≥ 70	2.27	1.29-3.98	<0.01	3.58	2.58-4.97	<0.0001
Region
South	1.00	reference		1.00	reference
North	1.68	1.20-2.36	<0.01	1.09	0.90-1.31	0.38
Urbanization
Urban	1.00	reference		1.00	reference
Rural	2.82	1.76-4.51	<0.0001	2.29	1.77-2.96	<0.0001
BMI category (kg/m²)
< 18.5	1.19	0.79-1.79	0.42	1.10	0.87-1.39	0.41
18.5-24.9	1.00	reference		1.00	reference
≥ 25	0.61	0.35-1.08	0.09	0.60	0.43-0.83	<0.01
Employment status
Office worker	1.00	reference		1.00	reference
Labor worker^†	1.33	0.54-3.26	0.54	0.96	0.63-1.48	0.87
Unemployed	1.70	0.68-4.21	0.26	1.25	0.81-1.91	0.32
Education
At least some HS	1.00	reference		1.00	reference
Less than HS	1.40	0.59-3.32	0.45	1.34	0.89-2.02	0.16
None	1.92	0.78-4.76	0.16	1.56	1.00-2.43	0.05
Smoking
Never	1.00	reference		1.00	reference
Ever smoker	0.81	0.55-1.21	0.31	1.02	0.82-1.27	0.84
Drinking
Never	1.00	reference		1.00	reference
Drinker	1.11	0.72-1.71	0.65	1.05	0.84-1.32	0.67

RR = relative risk; CI = confidence interval; BMI = body mass index; HS = high school
* All variables for which values are listed are included in the model.
^† Labor worker includes peasant, herdsman, fisherman, factory worker, and other labor worker; office worker includes professional, manager, clerk and service worker.

ISSN: 1471-2458