Class (N) | Males (1128), % | Females (486), % | Female ratio |
Opioids (719) | 69.26 | 30.74 | 2.25 |
Stimulants (524) | 73.85 | 26.15 | 2.82† |
Sedatives (146) | 69.18 | 30.82 | 2.24 |
Misc pharmaceutical (108) | 60.19 | 39.81 | 1.51‡ |
Hallucinogens (47) | 68.09 | 31.91 | 2.13 |
Other (70) | 64.29 | 35.71 | 1.80 |
*χ2 p<0.05 versus
†non-stimulants or
‡non-miscellaneous pharmaceuticals.