Table 4.
Odds Ratio of Risk Factors for Smoking Among Adolescents in Harare, Zimbabwe in 2009
| Factors | Univariate Analysis | Multivariate Analysis | ||||
|---|---|---|---|---|---|---|
| Odds Ratio | 95%CI | P | Odds Ratio | 95%CI | P | |
| Sex | ||||||
| Male | 2.68 | 1.86-3.84 | < 0.001 | - | - | - |
| Age (years) | ||||||
| 13-15 | 1 | |||||
| 16-17 | 1.37 | 0.88-2.12 | 0.154 | - | - | - |
| 18-19 | 2.76 | 1.78-4.29 | < 0.001 | |||
| Race | ||||||
| African Origin | 1 | |||||
| Caucasian Origin | 2.82 | 1.58-5.05 | < 0.001 | - | - | - |
| Asian | 0.42 | 0.05-3.43 | 0.418 | |||
| Mixed race | 3.67 | 1.85-7.28 | < 0.001 | |||
| Type of School | ||||||
| Government | 1 | |||||
| Private | 5.19 | 3.56-7.56 | < 0.001 | - | - | - |
| Geographical Location of School | ||||||
| Low density | 1 | |||||
| Medium density | 1.61 | 1.05-2.49 | 0.029 | |||
| High Density | 0.22 | 0.14-0.35 | < 0.001 | 0.27 | 0.15-0.52 | < 0.001 |
| Friends who smoke | ||||||
| Yes | 8.66 | 5.85-12.82 | < 0.001 | 2.75 | 1.73-4.36 | < 0.001 |
| Parents who smoke | ||||||
| Yes | 1.73 | 1.20-2.50 | 0.004 | - | - | - |
| Use Marijuana | ||||||
| Yes | 20.48 | 9.85-42.57 | < 0.001 | 8.08 | 3.46-18.83 | < 0.001 |
| Involved in Physical fight | ||||||
| Yes | 3.32 | 2.02-5.46 | < 0.001 | 2.29 | 1.24-4.24 | 0.008 |
| Drink Alcohol | ||||||
| Yes | 16.06 | 8.51-30.34 | < 0.001 | 5.72 | 2.85-11.46 | < 0.001 |
| Had Sexual Intercourse | ||||||
| Yes | 5.46 | 3.39-8.82 | < 0.001 | 4.43 | 2.25-8.74 | < 0.001 |
| Suicidal | ||||||
| Yes | 1.92 | 1.22-3.00 | 0.005 | |||