Table 5 Longitudinal analyses of 13-year change in weight (kg), desired weight (kg) and difference between the two (kg), among women according to BMI category in Tromsø 4
|  | BMI <25 | BMI 25-29.99 | BMI ≥30 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Â | n | Actual differencea | Difference in desired weightb | Discrepancy in difference (CI)c | n | Actual differencea | Difference in desired weightb | Discrepancy in difference (CI)c | n | Actual differencea | Difference in desired weightb | Discrepancy in difference (CI)c |
25–29 | 338 | 7.7 | 4.9 | 2.9 (2.3, 3.4) | 97 | 9.1 | 6.2 | 2.9 (1.6, 4.4) | 25 | 8.7 | 6.3 | 2.4 (-1.6, 6.0) |
30–34 | 241 | 6.0 | 3.9 | 2.1 (1.4, 2.7) | 76 | 7.6 | 5.1 | 2.5 (0.6, 4.0) | 19 | 7.9 | 5.4 | 2.5 (-2.4, 7.6) |
35–39 | 249 | 6.1 | 3.8 | 2.3 (1.8, 3.0) | 85 | 6.3 | 5.3 | 1.0 (-0.5, 2.4) | 21 | 10.2 | 6.2 | 4.0 (0.1, 7.6) |
40–44 | 239 | 5.3 | 3.3 | 2.0 (1.4, 2.6) | 106 | 6.0 | 4.3 | 1.7 (0.3, 3.2) | 33 | 4.9 | 3.0 | 1.9 (-1.4, 4.7) |
45–49 | 367 | 4.8 | 3.1 | 1.7 (1.2, 2.1) | 239 | 5.3 | 3.7 | 1.6 (1.0, 2.3) | 71 | 3.4 | 3.4 | 0.1 (-2.5, 2.2) |
50–54 | 311 | 4.5 | 2.7 | 1.8 (1.3, 2.5) | 228 | 4.5 | 3.5 | 1.1 (0.2, 2.0) | 89 | 4.1 | 2.6 | 1.5 (-0.8, 4.0) |
55–59 | 183 | 2.6 | 1.7 | 1.0 (0.4, 1.6) | 159 | 2.7 | 2.7 | 0.0 (-1.2, 0.9) | 57 | −0.1 | 2.5 | −2.6 (-5.1, -0.7) |
60–64 | 114 | 0.9 | 0.4 | 0.5 (-0.5, 1.4) | 128 | 2.8 | 1.7 | 1.0 (-0.1, 2.1) | 38 | 0.6 | 1.8 | −1.1 (-3.2, 1.5) |
65–69 | 71 | −0.6 | 0.1 | −0.7 (-1.8, 0.6) | 69 | 1.0 | 0.4 | 0.6 (-0.5, 2.1) | 36 | −2.1 | 1.1 | −3.1 (-5.1, -1.0) |
Total | 2113 | 5.0 | 3.2 | 1.8 (1.6, 2.0) | 1187 | 4.9 | 3.6 | 1.3 (0.9, 1.6) | 389 | 3.3 | 3.1 | 0.2 (-0.7, 1.0) |