Table 1 Background information

979

657

890

652

238

501

49.7

30.9

18.4

46.5

28.2

18.2

Range

14.0 – 249.6

11.0 – 122.7

5.7 – 79.8

14.0 – 162.4

10.0 – 68.0

6.1 – 62.0

>50 μg/l, N (%)

488 (49.8)

57 (8.7)

15 (1.7)

271 (41.6)

11 (4.6)

2 (0.4)

Girl

467 (47.7)

355 (54.0)

431 (48.4)

344 (52.8)

115 (48.3)

259 (51.7)

Boy

512 (52.3)

302 (46.0)

459 (51.6)

308 (47.2)

123 (51.7)

242 (48.3)

Preschool (4–7 years)

77 (7.9)

21 – 84

0 (0.0)

---

0 (0.0)

---

0 (0.0)

---

0 (0.0)

---

0 (0.0)

---

1^st (8 years)

42 (4.3)

24 – 88

140 (21.3)

12 – 73

111 (12.5)

6 – 55

146 (22.4)

14 – 162

29 (12.2)

16 – 68

80 (16.0)

7 – 40

2^nd (9 years)

164 (16.8)

14 – 129

303 (46.1)

11 – 122

352 (39.6)

6 – 72

151 (23.2)

16 – 115

93 (39.1)

10 – 67

175 (34.9)

6 – 49

3^rd (10 years)

150 (15.3)

15 – 102

214 (32.6)

13 – 68

410 (46.1)

6 – 80

137 (21.0)

15 – 124

116 (48.7)

12 – 64

246 (49.1)

8 – 62

546 (55.8)

16 – 250

0 (0.0)

---

17 (1.9)

12 – 68

218 (33.4)

19 – 134

0 (0.0)

---

0 (0.0)

---

Yes

(mother/father or both)

6 (0.6)

367 (55.9)

334 (37.5)

66 (10.1)

140 (58.8)

240 (47.9)

No

2 (0.2)

280 (42.6)

376 (42.2)

49 (7.5)

98 (41.2)

261 (52.1)

Missing

971 (99.2)

10 (1.5)

180 (20.2)

537 (82.4)

0 (0.0)

0 (0.0)

Yes

92 (9.4)

126 (19.2)

128 (14.4)

81 (12.4)

57 (23.9)

66 (13.2)

No

887 (90.6)

531 (80.8)

762 (85.6)

571 (87.6)

181 (76.1)

435 (86.8)

Nordic countries

936 (95.6)

622 (94.7)

809 (90.9)

623 (95.6)

231 (97.1)

461 (92.0)

All other countries

31 (3.2)

35 (5.3)

79 (8.9)

21 (3.2)

7 (2.9)

40 (8.0)

Missing

12 (1.2)

0 (0.0)

2 (0.2)

8 (1.2)

0 (0.0)

0 (0.0)