Reports of alcohol and drug use by interview mode, Druid Project
| Behaviour | Interview mode | Adusted OR† | 95% CI | |
|---|---|---|---|---|
| ACASI (%) | IAQ (%) | |||
| †Adjusted odds ratios for mode effect derived from logistic regression model controlling for sex, age, marital status, education, patient status, and health insurance coverage. * p<0.05, **p<0.01, ***p<0.001. | ||||
| ‡Questions included the different forms of cocaine such as powder, “crack”, free base, and coca paste. | ||||
| §Respondent was asked whether they ever injected heroin, speed, cocaine or steroids. | ||||
| ¶Drank five or more drinks on the same occasion at least once in past 30 days. | ||||
| Lifetime | ||||
| Never drank alcohol | 14.7 | 7.3 | 2.21*** | 1.53 to 3.18 |
| Never smoked marijuana | 27.0 | 28.3 | 0.97 | 0.75 to 1.24 |
| Ever used cocaine‡ | 20.5 | 21.7 | 0.96 | 0.69 to 1.34 |
| Ever injected drugs§ | 6.2 | 4.5 | 1.48 | 0.89 to 2.46 |
| Recent use | ||||
| No alcohol in the past 30 days | 38.5 | 35.9 | 1.12 | 0.89 to 1.40 |
| Drank 5+ drinks 1+ days in the past 30 days¶ | 26.4 | 21.1 | 1.39* | 1.07 to 1.81 |
| Smoked marijuana in the past 30 days | 36.1 | 30.5 | 1.28* | 1.0 to 1.64 |
| Cocaine use in the past 30 days | 6.4 | 6.1 | 1.14 | 0.71 to 1.84 |
| Injected drugs in the past 30 days | 2.1 | 0.9 | 2.44 | 0.91 to 6.55 |
| Total | 677 | 673 | ||