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| | |
1982
| |
1996
| |
2001
| | |
|---|
| |
Age at first sexual intercourse
|
N (%)
|
95% CI
|
N (%)
|
95% CI
|
N (%)
|
95% CI
|
Trend*
|
|---|
|
Boys:
|
11
|
0 (0)
| |
0 (0)
| |
1 (1)
|
(0–3)
| |
| |
12
|
0 (0)
| |
0 (0)
| |
0 (0)
| | |
| |
13
|
3 (3)
|
(0–6)
|
4 (4)
|
(0–8)
|
4 (5)
|
(0–8)
| |
| |
14
|
8 (7)
|
(3–13)
|
6 (6)
|
(2–10)
|
11 (14)
|
(6–16)
| |
| |
15
|
17 (14)
|
(12–22)
|
25 (27)
|
(20–30)
|
15 (20)
|
(10–20)
| |
| |
All ages < 16
|
28 (24)
| |
35 (37)
| |
31 (40)
| |
χ2 = 7.5 p = 0.023
|
|
Girls:
|
12
|
0 (0)
| |
1 (1)
|
(0–3)
|
2 (1)
|
(0–5)
| |
| |
13
|
15 (5)
|
(8–22)
|
8 (3)
|
(3–13)
|
8 (4)
|
(3–13)
| |
| |
14
|
35 (13)
|
(25–45)
|
20 (8)
|
(13–27)
|
23 (12)
|
(15–31)
| |
| |
15
|
66 (24)
|
(56–76)
|
42 (17)
|
(34–50)
|
48 (25)
|
(39–57)
| |
| |
All ages < 16
|
116 (42)
| |
71 (29)
| |
81 (42)
| |
χ22 = 11.8 p = 0.003
|
