Table 2.
Multiple binary logistic regression on factors significantly associated with suicide attempt among Chinese individuals receiving methadone maintenance treatment for heroin dependence.
| Variables | One-month suicide attempt | Lifetime suicide attempt | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Coefficient | Standard error | Wald χ2 | P | OR(95%CI) | Coefficient | Standard error | Wald χ2 | P | OR(95%CI) | ||
| Gender | Male | 1 | 1 | ||||||||
| Female | 1.216 | 0.500 | 5.904 | 0.015 | 3.37(1.27,8.99) | 1.034 | 0.261 | 15.707 | <0.001 | 2.81(1.69,4.69) | |
| Age (years) | 40–59 | 1 | 1 | ||||||||
| 20–39 | 1.603 | 0.477 | 11.315 | 0.001 | 4.98(1.95,12.66) | 1.006 | 0.253 | 15.781 | <0.001 | 2.73(1.66,4.48) | |
| Education | Middle school or higher | 1 | 1 | ||||||||
| Primary school or lower | 0.993 | 0.540 | 3.376 | 0.066 | 2.70(0.94,7.81) | 0.729 | 0.369 | 3.909 | 0.048 | 2.07(1.01,4.27) | |
| Marital status | Married | 1 | 1 | ||||||||
| Non-married | 1.583 | 0.472 | 11.288 | 0.001 | 4.88(1.93,12.35) | 0.062 | 0.245 | 0.063 | 0.801 | 1.06(0.66,1.72) | |
| Employment | Yes | 1 | 1 | ||||||||
| No | 0.612 | 0.464 | 1.740 | 0.187 | 1.84(0.74,4.58) | 0.101 | 0.237 | 0.180 | 0.671 | 1.12(0.70,1.76) | |
| Self-rated economic status | Good | 1 | 1 | ||||||||
| Fair | 0.020 | 0.586 | 0.001 | 0.973 | 1.02(0.32,3.21) | −0.219 | 0.290 | 0.570 | 0.450 | 0.80(0.46,1.42) | |
| Poor | 0.744 | 0.687 | 1.175 | 0.278 | 2.11(0.55,8.09) | 1.117 | 0.373 | 8.970 | 0.003 | 3.06(1.47,6.35) | |
| Route of past heroin administration | Smoking | 1 | 1 | ||||||||
| Injecting | 1.527 | 0.725 | 4.436 | 0.036 | 4.60(1.45,28.51) | 1.070 | 0.381 | 7.887 | 0.005 | 2.92(1.38,6.13) | |
| Duration of heroin use (years) | ≤10 | 1 | 1 | ||||||||
| >10 | 1.174 | 0.509 | 5.323 | 0.021 | 3.24(1.19,8.77) | 0.228 | 0.238 | 0.924 | 0.337 | 1.26(0.79,2.00) | |
| Duration of MMT (months) | ≤24 | 1 | 1 | ||||||||
| >24 | −0.563 | 0.430 | 1.711 | 0.191 | 0.57(0.25,1.32) | 0.490 | 0.262 | 3.498 | 0.062 | 1.55(0.94,2.54) | |
| Methadone dose (md/d) | ≤70 | 1 | 1 | ||||||||
| >70 | 0.412 | 0.443 | 0.863 | 0.353 | 1.51(0.63,3.60) | 0.318 | 0.234 | 1.851 | 0.174 | 1.37(0.87,2.17) | |
| Depressive symptoms | No | 1 | 1 | ||||||||
| Yes | 0.625 | 0.574 | 1.184 | 0.277 | 0.54(0.17,1.65) | 1.241 | 0.363 | 11.709 | 0.001 | 3.46(1.70,7.04) | |
| Anxiety symptom | No | 1 | 1 | ||||||||
| Yes | 1.206 | 0.559 | 4.657 | 0.031 | 3.34(1.12,9.98) | 0.632 | 0.295 | 4.602 | 0.032 | 1.88(1.06,3.35) | |
| Pain | No | 1 | 1 | ||||||||
| Yes | 0.554 | 0.567 | 0.952 | 0.329 | 1.74(0.57,5.29) | 0.383 | 0.272 | 1.991 | 0.158 | 1.47(0.86,2.50) | |
| Loneliness | No | 1 | 1 | ||||||||
| Yes | 1.612 | 0.525 | 9.439 | 0.002 | 5.02(1.79,14.03) | 0.252 | 0.245 | 1.055 | 0.304 | 1.29(0.80,2.08) | |
| Antisocial personality disorder | No | 1 | 1 | ||||||||
| Yes | 1.768 | 0.502 | 12.422 | <0.001 | 5.86(2.19,15.66) | 1.047 | 0.248 | 17.739 | <0.001 | 2.85(1.75,4.63) | |