Table 3.
Prevalence (%) of Current Dependence on Multiple Substances by Gender
| Number of Substance Dependences | Total | By Gender | p-value 1 | M/F Odds Ratios (95% C.I.) | |
|---|---|---|---|---|---|
| Male | Female | ||||
| N <= | 464 | 332 | 132 | ||
| 0 substances | 22.8 | 25.6 | 15.9 | .025 | 1.81 (1.07, 3.12) |
| 1 substance | 40.7 | 40.1 | 42.4 | N/A | |
| 2 substances | 27.2 | 25.0 | 32.6 | .1562 | |
| 3 substances | 6.3 | 6.6 | 5.3 | ||
| 4 or more substances | 3.0 | 2.7 | 3.8 | ||
|
| |||||
|
Main Combinations of Dependence on Multiple Substances
| |||||
| Alcohol & cannabis dependence | 5.9 | 6.4 | 4.6 | .460 | 1.42 (0.56, 3.60) |
| Alcohol & cocaine dependence | 21.4 | 22.0 | 19.7 | .583 | 1.15 (0.70, 1.90) |
| Alcohol & opioid dependence | 6.8 | 7.7 | 4.5 | .225 | 1.75 (0.70, 4.37) |
| Alcohol & other drug dependence | 3.7 | 3.0 | 5.3 | .236 | 0.56 (0.21, 1.49) |
| Cocaine & cannabis dependence | 5.0 | 5.5 | 3.8 | .464 | 1.46 (0.53, 4.01) |
| Cocaine & opioid dependence | 13.5 | 12.6 | 15.9 | .345 | 0.76 (0.43, 1.34) |
| Cocaine & other drug dependence | 4.3 | 3.9 | 5.3 | .507 | 0.73 (0.28, 1.87) |
| Opioid & cannabis dependence | 2.9 | 3.4 | 1.5 | .286 | 2.24 (0.49, 10.26) |
| Opioid & other drug dependence | 3.2 | 3.0 | 3.8 | .670 | 0.79 (0.26, 2.35) |
1
Chi-square test for the 2 ×2 or corresponding contingency table
2
For the test based on the 2 × 5 contingency table.