Risky behaviours | 2002 | 2008 | 2011 | ALL |
---|---|---|---|---|
(N = 1854) | (N = 1499) | (N = 1707) | (N = 5060) | |
% | % | % | % | |
First had sex at age ≤ 13 | 8.6 | 6.6 | 7.4 | 7.7 |
Number of sexual partners | Â | Â | Â | Â |
 1 partner | 68.8 | 69.9 | 62.7 | 68.2 |
 2 or more partners | 30.2 | 28.7 | 34.9 | 31.8 |
Ever use alcohol before sex | 6.7 | 13.1 | 13.8 | 11.0 |
used condom during sex | Â | Â | Â | Â |
 Never or rarely use condoms | 32.8 | 25.4 | 27.6 | 28.9 |
 Mostly use condoms | 67.2 | 74.6 | 72.4 | 71.1 |
Contraceptive methods | Â | Â | Â | Â |
 No method | 16.0 | 14.2 | 13.3 | 14.6 |
 Birth control pills | 4.6 | 3.8 | 5.2 | 4.6 |
 Condoms | 32.5 | 44.3 | 46.6 | 40.7 |
 Injection | 14.4 | 11.7 | 12.6 | 13.0 |
 Other | 8.2 | 7.5 | 8.7 | 8.1 |
Ever been pregnant | 17.3 | 23.6 | 21.3 | 20.5 |
Ever had an abortion | 5.1 | 6.8 | 6.0 | 5.9 |