Table 3 Longitudinal analyses of 13-year change in weight (kg), desired weight (kg) and difference between the two (kg), from Tromsø 4 to Tromsø 6

25–29

345

7.7 (6.8, 8.5)

3.8 (3.4, 4.4)

3.9 (3.3, 4.8)

460

8.1 (7.4, 9.0)

5.2 (4.9, 5.7)

2.8 (2.3, 3.5)

30–34

243

7.3 (6.5, 8.0)

4.6 (4.0, 5.2)

2.8 (1.7, 3.5)

336

6.5 (5.8, 7.3)

4.3 (3.8, 4.7)

2.2 (1.7, 2.9)

35–39

301

6.2 (5.5, 6.9)

3.7 (3.1, 4.4)

2.5 (1.9, 3.3)

355

6.4 (5.7, 7.1)

4.3 (3.9, 4.7)

2.1 (1.5, 2.7)

40–44

321

5.4 (4.6, 6.4)

3.0 (2.5, 3.4)

2.4 (1.5, 3.1)

378

5.4 (4.9, 6.1)

3.6 (3.1, 4.0)

1.9 (1.3, 2.5)

45–49

593

3.9 (3.4, 4.4)

1.9 (1.6, 2.3)

2.0 (1.5, 2.5)

677

4.8 (4.3, 5.2)

3.3 (3.1, 3.6)

1.5 (1.0, 1.9)

50–54

638

3.0 (2.5, 3.4)

1.3 (0.9, 1.6)

1.6 (1.2, 2.1)

628

4.5 (3.9, 5.0)

3.0 (2.7, 3.2)

1.5 (1.1, 2.0)

55–59

394

2.1 (1.5, 2.8)

1.1 (0.7, 1.6)

1.0 (0.4, 1.5)

399

2.3 (1.8, 2.9)

2.2 (1.9, 2.6)

0.1 (−0.6, 0.7)

60–64

253

0.4 (-0.6, 1.1)

0.1 (-0.4, 0.6)

0.3 (-0.5, 0.8)

280

1.7 (0.7, 2.5)

1.2 (0.7, 1.6)

0.5 (-0.3, 1.3)

65–69

122

0.9 (-0.1, 1.9)

0.1 (-0.8, 0.8)

0.9 (-0.1, 1.8)

176

−0.3 (-1.7, 0.7)

0.4 (-0.4, 1.1)

−0.7 (-1.7, 0.4)

Total

3210

4.2 (3.9, 4.4)

2.2 (2.0, 2.3)

2.0 (1.7, 2.2)

3689

4.8 (4.5, 5.0)

3.3 (3.2, 3.4)

1.5 (1.3, 1.7)