Changes in mental health services and suicide mortality in Norway: an ecological study

Table 3 Poisson regression models of suicide mortality among Norwegian females

Variables	Crude analysis		Adjusted analysis I¹		Adjusted analysis II²
	IRR^$	95% CI	IRR	95% CI	IRR	95% CI
Year (1990-2006)	0.99*	0.981-0.996	1.08	0.912-1.289	1.00	0.957-1.053
Health region
East region	1		1		1
South region	0.98	0.883-1.084	0.74	0.301-1.831	0.98	0.883-1.085
West region	0.71*	0.638-0.800	0.56	0.300-1.058	0.71*	0.638-0.801
Mid region	0.68*	0.599-0.780	0.52	0.236-1.142	0.68*	0.599-0.779
North region	0.79*	0.682-0.905	0.57	0.234-1.400	0.78*	0.681-0.904
Outpatient consultations	1.00	0.999-1.000	1.00	0.992-1.001
Man-labour years	1.01	0.899-1.132	1.00	0.752-1.317
Discharges	0.97*	0.952-0.988	1.00	0.920-1.076
Beds	1.19*	1.057-1.343	0.94	0.477-1.870
Bed-days	1.00*	1.000-1.001	1.00	0.997-1.002
Antidepressants	1.00*	0.993-0.999	0.97*	0.944-0.992	0.98*	0.967-0.998
Alcohol	0.95	0.887-1.011	1.76*	1.222-2.543	1.41*	1.177-1.715
Education	0.99	0.883-1.113	0.95	0.776-1.153
Unemployment	1.00	0.990-1.013	1.11	0.914-1.339
^$IRR = Incidence Rate Ratio			¹Goodness-of-fit χ² = 80.4		²Goodness-of-fit χ² = 84.0
*p < 0.05			Prob > χ²(70) = 0.19		Prob > χ²(77) = 0.27

Data are accompanied by secondary mental health services effect estimates adjusted for annual trends, health regions, sales of antidepressants, sales of alcohol, education, and unemployment.

ISSN: 1472-6963