Table 2.

Unadjusted univariate analyses: risk assessment items

Risk factor	N	Events expected	Events observed	Log-rank test	RR (95% CI)	p value
Previous suicide attempts
Absent	7004	40	24	14.1	2.46 (1.51–4.01)	< 0.001
Present	5657	33	49
Violent method
Absent	9167	50.7	37	14.7	2.46 (1.53–3.97)	< 0.001
Present	3069	17.3	31
Plan to end life
Absent	11,551	64.5	53	22.5	3.37 (1.98–5.77)	< 0.001
Present	1258	6.5	18
Suicidal ideation
Absent	10,583	61.7	51	9.4	2.06 (1.30–3.31)	0.002
Present	2843	15.3	26
Hopelessness
Absent	9419	55.1	37	21.7	2.79 (1.78–4.37)	< 0.001
Present	3811	20.9	39
Distress
Absent	8617	51.5	42	5.1	1.66 (1.07–2.60)	0.024
Present	4651	26.5	36
No control over life
Absent	9290	55.1	42	11.3	2.13 (1.36–3.35)	< 0.001
Present	3576	20.9	34
Alcohol/drugs
Absent	7834	44.1	36	3.8	1.60 (0.99–2.51)	0.051
Present	4971	27.9	36
Impulsivity
Absent	7292	43.5	34	4.7	1.64 (1.05–2.57)	0.030
Present	5636	33.5	43
Living alone
Absent	8358	48.3	46	0.3	1.12 (0.72–1.76)	0.603
Present	4949	30.7	33
Poor physical health
Absent	9616	56.2	56	0	1.01 (0.61–1.67)	0.964
Present	3431	20.8	21
Significant loss
Absent	8243	50	39	7.5	1.88 (1.20–2.96)	0.006
Present	4256	24	35
Disengagement
Absent	9841	58.3	48	7.2	1.85 (1.17–2.91)	0.007
Present	3277	19.7	30
Recent hospital discharge
Absent	10,973	65.1	56	7.3	1.93 (1.20–3.14)	0.007
Present	2399	13.9	23
Family history
Absent	5921	32.88	35	1.2	0.46 (0.11–1.90)	0.268
Present	730	4.12	2