Table 4.
Sexual Behaviour | Younger males (14 & 15 years old) | Older males (16 & 17 years old) | p value* | ||
---|---|---|---|---|---|
% | 95% CI | % | 95% CI | ||
Forced sex by another youth | 3.8 | 1.9 – 7.4 | 1.3 | 0.4 – 3.7 | p = .025 |
Forced sex by an adult | 1.7 | 0.7 – 4.0 | 0.2 | 0 – 1.6 | |
Unwanted sex in past year because of alcohol or drugs | 9.1 | 6.0 – 13.7 | 4.9 | 2.8 – 8.5 | p =.077 |
Alcohol/drug use before last sex | 24.4 | 19.2 – 30.3 | 24.5 | 20.1 – 29.5 | p =.479 |
3 + sexual partners in past year | 17.9 | 13.7 – 23.0 | 8.6 | 5.7 – 12.7 | p =.02 |
Condom used at last sex | 83.1 | 77.5 – 87.5 | 74.2 | 68.5 – 79.1 | p =.018 |
Effective birth control at last sex** | 89.3 | 84.3 – 92.8 | 90.1 | 85.4 – 93.4 | p =.781 |
Pregnancy involvement | 5.5 | 3.3 – 9.1 | 4.1 | 2.2 – 7.6 | p =.863 |
Told had an STI | 2.3 | 1.0 – 5.1 | 0.2 | 0 – 1.6 | p =.009 |
The p-value is calculated from a variant of the second-order Rao-Scott adjusted chi-square test statistic, an adjusted F, and its degrees of freedom.
Among the 89.3% of younger males who reported effective birth control at last sex, 61.7% used condoms only, 5.2% used hormonal methods only, and 33.1% used dual methods; among the 90.1% of older males who reported effective birth control at last sex, 46.4% used condoms only, 19.6% used hormonal methods only, and 34.1% used dual methods.