Table 2.

 Number of patients with subsequent suicide attempt at one year follow-up, by source of data on new events and by subgroup. Values are number of patients with one or more new events/number in group with available data (percentage) unless otherwise stated

	Intervention group	Standard group	P value	Odds ratio (95% CI)
Data source
Hospital recorded	20/123 (16)	13/120 (11)	0.22	1.60 (0.76 to 3.38)
Self reported	11/95 (12)	13/74 (18)	0.27	0.61 (0.26 to 1.46)
Estimated by multiple imputations	15/123 (12)	23/120 (19)	0.32	0.69 (0.34 to 1.43)
Subgroup analysis
Age
11-19	7/30 (23)	7/26 (27)	0.76	0.83 (0.25 to 2.77)
20-39	10/65 (15)	4/66 (6)	0.10*	2.82 (0.84 to 9.50)
40+	3/28 (11)	2/28 (7)	1.00*	1.56 (0.24 to 10.14)
Sex
Male	7/27 (26)	2/32 (6)	0.07*	5.25 (0.99 to 27.90)
Female	13/96 (14)	11/88 (13)	0.83	1.10 (0.46 to 2.59)
Diagnosis
Mild to moderate depression†	19/110 (17)	13/112 (12)	0.23	1.59 (0.74 to 3.40)
Personality disorder‡	9/110 (8)	7/112 (6)	0.58	1.34 (0.48 to 3.73)

*Fisher’s exact test.

†Diagnosed at time of inclusion (ICD-10: F32.0-1, F32.8-9, F33.0-1, F33.4-9, F34-39).

‡Diagnosed at time of inclusion (ICD-10: F60-69).