Table 3.
Control group | Prevalence of illicit drug use by control group | ||||||
---|---|---|---|---|---|---|---|
Cannabis | Stimulant | Opioid | Sedative | Cocaine | Any illicit | Any non-cannabis | |
ATR | 44.4 % | 6.8 % | 7.4 % | 3.5 % | 2.3 % | 49.8 % | 15.0 % |
Nondependent Neighborhood | 71.1 % | 44.4 % | 10.6 % | 12.9 % | 25.9 % | 79.1 % | 50.6 % |
Odds-ratio (95% CI) | 4.22 (3.21–5.54) | 10.91 (8.14–14.63) | 1.49 (1.00–2.22) | 4.12 (2.71–6.28) | 14.57 (9.63–22.03) | 3.81 (2.88–5.05) | 5.78 (4.48–7.46) |
Abbreviations: ATR, Australian Twin Registry; OR, odds ratio