Table 5. Associations of inpatient stays and outpatient treatment with suicide.

Type of treatment	Suicide group (M, SD)	Control group (M, SD)	P value1
Number of stays at inpatient wards:
Hospital wards, before start of study period2	1.2 (3.1)	2.1 (7.4)	0.70
Hospital wards, after start of study period	2.4 (2.5)	2.2 (2.3)	0.69
DPC wards, before start of study period	0.32 (1.5)	0.22 (0.8)	0.99
DPC wards, after start of study period	0.7 (1.3)	1.5 (4.6)	0.62
Wards for alcohol/ drug addiction, before start of study period	0.0 (0)	0.01 (0.09)	0.56
Wards for alcohol/ drug addiction after start of study period	0.0 (0)	0.18 (0.9)	0.12
All inpatient wards, total, before start of study period	1.6 (4.2)	2.3 (7.6)	0.75
All inpatient wards, total, after start of study period	3.1 (3.2)	3.9 (5.5)	0.42
All inpatient wards, all time periods	4.6 (5.9)	6.2 (11.7)	0.48
Number of years with outpatient treatment in the study period	1.5 (1.3)	1.9 (1.8)	0.53

¹Mann-Whitney U-test, p-values are uncorrected for multiple tests.

²Start of study period was January 2008. DPC—District psychiatric center.