(A) Adult individual level studies
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Bailey et al, 19977 | 120 females | 120 matched community dwelling controls | RS among women/⩾ one gun in home | 4.6 (1.2 to 17.5) |
Beautrais et al., 199634 | 197 | 1028 community dwelling controls | RS/access to a firearm at home | 1.4 (0.96 to 1.99) |
Conwell et al, 200237 | 86, ages 50 and over | 86 matched community dwelling controls | RS/⩾ one gun in home | 3.23 (1.15 to 11.20) |
Cummings et al, 199730 | 353 | 1756 matched community dwelling controls | RS/history of family handgun purchase | 1.9 (1.4 to 2.5) |
Grassel et al, 200332 | 887 suicide victims and 1546 gun suicide victims | 208738 non-injury deaths | -RS | 6.8 (5.7 to 8.1) |
-RFS/handgun purchase | 12.5 (10.4 to 15.0) |
Kellermann et al, 199236 | 438 | 438 matched community dwelling controls | RS/⩾ one gun in home | 4.8 (2.7 to 8.5) |
Kung et al, 200335 | 22772 | 448710 decedents with natural causes of death | RS/any firearms in or around decedent’s home during last year of life | Men living with others 3.53 (2.42 to 5.15) |
Women living with others 2.99 (1.58 to 5.65) |
Wiebe, 20038 | 1959 | 13535 community dwelling controls | -RS | 3.44 (3.06 to 3.86) |
-RFS/having a gun in home | 16.89 (13.26 to 21.52) |
Wintemute et al, 199931 | 238,292 handgun purchasers in California—observed 1991–1996 | General adult population of California | -RS in first year after handgun purchase | SMR 4.31 |
-RFS in first year after handgun purchase | SMR 7.12 |
(B) Adolescent individual level studies
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Brent et al, 198842 | 27 | 56 suicidal psychiatric inpatients | RS/firearms available in home | 2.7 (1.1 to 6.4) |
Brent et al, 199141 | 47 | (a) 47 suicide attempters | RS/gun available in home | a: 2.1 (1.2 to 3.7) |
| | (b) 47 never suicidal psychiatric controls | | b: 2.2 (1.4 to 3.5) |
Brent et al, 199338 | 7, all with no apparent psychopathology | (a) 60 adolescent suicide victims with psychiatric disorder | RS/gun available in home | a: none reported |
| | (b) 38 community controls with no psychiatric disorder | | b: p = 0.04 |
Brent et al, 199343 | 67 | 67 matched community dwelling controls | RS/any gun available in the home | 3.3 (1.4 to 7.7) |
Brent et al, 199444 | 63, all with a history of affective illness | 23 community dwelling controls with a history of affective illness | RS/handgun available in the home | p<0.01 |
Brent et al, 199940 | 140 | 131 community dwelling controls | RS/gun in home | 4.00 (1.30 to 14.70) |
Shah et al, 200039 | 36 firearm suicide victims | 36 matched community dwelling controls | RFS/household access to firearms | 3.91 (1.11 to 13.80) |