Univariate odds ratios as estimates of relative risk of firearm related injury in cases compared with controls
| Risk factor | No (%) cases (n=45) | No (%) controls (n=50) | OR (95% CI) |
|---|---|---|---|
| *A forward stepwise logistic regression was performed on each HEADSS domain, and the variables with p<0.10 (marked with asterisks above) were entered into the final multivariate logistic model. | |||
| Home | |||
| <2 parents* | 26 (58) | 13 (26) | 3.9 (1.6 to 9.3) |
| Unsafe home street | 22 (49) | 15 (30) | 2.2 (1.0 to 5.2) |
| Family homeless | 3 (7) | 0 (0) | 2.2 (1.8 to 2.7) |
| Runaway from home | 11 (24) | 6 (12) | 2.4 (0.8 to 7.1) |
| Live in a house | 30 (67) | 29 (58) | 1.4 (0.6 to 3.3) |
| Education | |||
| Skip class* | 20 (44) | 5 (10) | 7.2 (2.4 to 21.5) |
| Missed any days | 20 (44) | 10 (20) | 3.4 (1.4 to 8.4) |
| Fail class | 38 (84) | 30 (60) | 3.6 (1.4 to 9.7) |
| Suspension* | 38 (84) | 24 (48) | 5.9 (2.2 to 15.6) |
| Expulsion | 15 (33) | 4 (8) | 5.8 (1.7 to 19) |
| Not enrolled | 9 (20) | 1 (2) | 12.3 (1.5 to 101) |
| Repeated a grade | 6 (13) | 6 (12) | 1.1 (0.3 to 3.8) |
| Job counseling | 29 (64) | 29 (58) | 1.3 (0.6 to 3.0) |
| Activities | |||
| Home alone | 19 (43) | 9 (18) | 3.5 (1.4 to 8.7) |
| Hang out | 29 (66) | 21 (44) | 2.5 (1.1 to 5.7) |
| Watch TV more | 41 (93) | 35 (70) | 5.9 (1.7 to 20.4) |
| Arrest* | 26 (58) | 7 (14) | 8.4 (3.1 to 22.7) |
| Prison | 8 (18) | 1 (2) | 10.6 (1.3 to 88.5) |
| In a gang | 13 (28) | 6 (12) | 3.0 (1.0 to 8.7) |
| Know a gang | 39 (87) | 35 (70) | 2.8 (1.0 to 8.0) |
| No support person | 7 (16) | 4 (8) | 2.1 (0.6 to 7.8) |
| Drugs | |||
| Any drug use* | 25 (58) | 9 (18) | 6.3 (2.5 to 16.2) |
| Alcohol | 34 (79) | 23 (46) | 4.4 (1.8 to 11.1) |
| Marijuana | 23 (53) | 9 (18) | 5.2 (2.1 to 13.4) |
| Amphetamine | 6 (14) | 0 (0) | 2.4 (1.8 to 3.0) |
| Family member with drug problem | 15 (33) | 11 (22) | 1.7 (0.7 to 4.3) |
| Sex | |||
| Sexually active* | 29 (66) | 9 (18) | 8.8 (3.4 to 22.6) |
| Pregnancy | 4 (14) | 0 (0) | 1.3 (1.1 to 1.6) |
| Suicide | |||
| Depression | 8 (18) | 3 (6) | 3.5 (0.9 to 14.1) |
| Suicidal ideation | 7 (16) | 5 (10) | 1.7 (0.5 to 5.8) |
| Safety | |||
| Know gun owner* | 35 (78) | 24 (48) | 3.8 (1.5 to 9.3) |
| Know gun injury* | 40 (89) | 29 (58) | 5.8 (2.0 to 17.2) |
| Know gun fatality | 17 (38) | 16 (32) | 1.3 (0.6 to 3.0) |
| Fired a gun | 21 (48) | 11 (22) | 3.2 (1.3 to 7.9) |
| Gun in the home | 8 (18) | 6 (12) | 1.6 (0.5 to 5.1) |
| Victim of violence | 11 (25 ) | 6 (12) | 2.4 (0.8 to 7.3) |
| Victim of violence, family member | 11 (25 ) | 5 (10) | 3.0 (1.0 to 9.5) |
| Witness crime | 28 (62) | 23 (46) | 1.9 (0.9 to 4.4) |
| Gun use instruction | 28 (62) | 35 (70) | 0.7 (0.3 to 1.7) |