Table.

Risk ratios (95% confidence intervals) for suicide in relation to gross income and time since first discharge from hospital for a psychiatric disorder in 811 people who committed suicide and 80 787 control subjects

Gross income	Crude risk ratio*	Hospital admission status (adjusted risk ratio)†
		Never admitted	Currently in hospital or discharged in past year‡	Discharged >1 year ago
Highest fourth	1	1	1	1
Third	1.34 (1.09 to 1.65)	1.14 (0.86 to 1.51)	0.50 (0.25 to 0.97)	0.71 (0.47 to 1.07)
Second	1.78 (1.43 to 2.21)	1.26 (0.94 to 1.71)	0.37 (0.18 to 0.77)	0.55 (0.37 to 0.83)
Lowest fourth	2.27 (1.82 to 2.83)	1.35 (0.97 to 1.91)	0.35 (0.17 to 0.69)	0.45 (0.29 to 0.68)
Test of trend‡	P<0.0001	P=0.08	P=0.002	P<0.0001
Risk ratio for trend	1.32 (1.22 to 1.42)	1.10 (0.99 to 1.24)	0.70 (0.56 to 0.88)	0.77 (0.67 to 0.88)

^*Adjusted for age, time period, and sex by matching. 

^†Adjusted for socioeconomic and marital status; schizophrenia, manic depressive psychosis, and reactive psychosis; and an indicator for more than one previous admission by regression and for age, sex, and time period by matching. 

^‡The three trends in the adjusted model were significantly different (P<0.0001).