Table 2 Age at first sexual intercourse by sex and survey year.

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

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