| 1982 |  | 1996 |  | 2001 |  |  |
---|---|---|---|---|---|---|---|
Contraceptive method | N (%) | 95% CI | N (%) | 95% CI | N (%) | 95% CI | Trend* |
Regular partner | Â | Â | Â | Â | Â | Â | Â |
   Boys: |  |  |  |  |  |  |  |
   Condom | 12 (40) | (7–17) | 19 (61) | (14–24) | 14 (48) | (9–19) |  |
   No current personal use | 18 (60) | (13–23) | 12 (39) | (7–17) | 15 (52) | (10–20) |  |
   Sexually experienced boys (total) | 30 (100) |  | 31 (100) |  | 29 (100) |  | p = 0.245 |
   Girls: |  |  |  |  |  |  |  |
   Oral contraception | 66 (53) | (55–77) | 70 (69) | (61–79) | 65 (72) | (57–73) | p = 0.005 |
   Condom and oral contraception | 0 (0) | (0–3) | 5 (5) | (1–11) | 9 (10) | (3–15) | p = 0.009 |
   Condom | 1 (1) |  | 1 (1) |  | 0 (0) |  |  |
   Intrauterine device | 12 (10) | (6–18) | 0 (0) |  | 0 (0) |  | p = 0.0001 |
   Other | 5 (4) | (1–9) | 1 (1) | (0–3) | 3 (3) | (0–6) | p = 0.374 |
   No current personal use | 41 (33) | (31–51) | 24 (24) | (16–32) | 13 (15) | (6–20) | p = 0.008 |
   Sexually experienced girls (total) | 125 (100) |  | 101 (100) |  | 90 (100) |  |  |
No regular partner | Â | Â | Â | Â | Â | Â | Â |
   Boys: |  |  |  |  |  |  |  |
   Condom | 23 (61) | (17–29) | 29 (91) | (26–32) | 22 (85) | (18–26) |  |
   No current personal use | 15 (39) | (9–21) | 3 (9) | (0–6) | 4 (15) | (0–8) |  |
   Sexually experienced boys (total) | 38 (100) |  | 32 (100) |  | 26 (100) |  | p = 0.007 |
   Girls: |  |  |  |  |  |  |  |
   Oral contraception | 30 (48) | (22–38) | 27 (35) | (19–35) | 33 (63) | (26–40) | p = 0.005 |
   Condom and oral contraception | 0 (0) | (0–3) | 5 (6) | (1–9) | 0 (0) | (0–3) | p = 0.016 |
   Condom | 0 (0) |  | 2 (3) |  | 1 (2) |  |  |
   Intrauterine device | 1 (2) | (0–3) | 0 (0) |  | 0 (0) |  | p = 0.594 |
   Other | 6 (10) | (1–11) | 1 (1) | (0–3) | 1 (2) | (0–3) | p = 0.004 |
   No current personal use | 25 (40) | (17–33) | 43 (55) | (34–52) | 17 (33) | (10–24) | p = 0.031 |
   Sexually experienced girls (total) | 62 (100) |  | 78 (100) |  | 52 (100) |  |  |