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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

From: Longitudinal changes in desired body weight compared to changes in body weight: evidence of adaptation to weight gain?

  BMI <25 BMI 25-29.99 BMI ≥30
  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)
  1. aActual difference: Measured body weight in Tromsø 6 (2007–2008) minus measured weight in Tromsø 4 (1994–1995), with 95 % confidence intervals
  2. bDifference in desired weight: Desired weight in Tromsø 6 (2007–2008) minus desired weight in Tromsø 4 (1994–1995), with 95 % confidence intervals
  3. cDiscrepancy in difference (CI): Actual difference minus Difference in desired weight, with 95 % confidence intervals