Table 1. Bivariate analyses of lifetime illicit substance use among school-attending adolescents in Dar es Salaam, Tanzania (2006).
| Variable | No lifetime illicit substance use – Percent (Number) | Lifetime illicit substance use, at least once – Percent (Number) | P-value |
|---|---|---|---|
| Mean age (SD) | 13 (1.3) | 12.8 (1.4) | 0.175 |
| Gender (male) | 95.0% (951) | 5.0% (50) | 0.096 |
| Poverty (yes) | 94.7% (215) | 5.3% (12) | 0.366 |
| Truancy (yes) | 88.4% (152) | 11.6% (20) | P<0.001 |
| Been in a physical fight (yes) | 94.5% (797) | 5.5% (46) | 0.025 |
| Considered suicide (yes) | 87.3% (200) | 12.7% (29) | P<0.001 |
| Depression (yes) | 93% (451) | 7% (34) | P<0.001 |
| Seriously injured (yes) | 94.2% (647) | 5.8% (40) | 0.002 |
| Parents checked homework (yes) | 97% (1343) | 3% (41) | P<0.001 |
| Understanding parents (yes) | 96.5% (937) | 3.5% (34) | 0.083 |
| Parents knowledgeable about free time (yes) | 96.5% (1011) | 3.5% (37) | 0.102 |
Reference category: Negative response to the respective questions.
The results are reported as proportions (%) and the total counts for all variables except for age for which the standard deviation is reported.