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Table 3 Odds ratios and 95% CI for being overweight or obese at 8 years of age according to the BMI SDS at each target age (status) and change in BMI SDS during each period (change) a

From: Important periods of weight development in childhood: a population-based longitudinal study

  Overweight Obese
Age, years Age intervals StatusbOR (95% CI) for being overweight at 8 years per 1 SDS score increase at the target age ChangecOR (95% CI) for being overweight at 8 years per 1 SDS score increase between target ages Change and statusdOR (95% CI) StatusbOR (95% CI) for being obese at 8 years per 1 SDS score increase at target age ChangecOR (95% CI) for being obese at 8 years per 1 SDS score increase between target ages Change and statusdOR (95 % CI)
0.00 1.8 (1.6–2.0)   1.8 (1.7–2.0) 1.9 (1.5–2.3)   1.8 (1.4–2.3)
0.00–0.25   1.2 (1.1–1.4) 1.8 (1.6–2.0)   1.3 (1.1–1.5) 1.9 (1.5–2.4)
0.25 2.0 (1.8–2.3)   1.9 (1.7–2.1) 2.1 (1.7–2.5)   1.9 (1.5–2.4)
0.25–0.50   3.1 (2.4–4.0) 3.6 (2.7–4.7)   2.9 (1.8–4.7) 3.4 (2.0–5.6)
0.50 2.1 (1.9–2.4)   1.9 (1.7–2.1) 2.2 (1.8–2.6)   1.9 (1.6 –2.4)
0.50–0.75   8.5 (5.7–13.0) 6.6 (4.3–10.0)   9.4 (4.4–19.9) 7.2 (3.2–10.69)
0.75 2.4 (2.1–2.7)   2.5 (2.3–2.9) 2.5 (2.0–3.0)   2.7 (2.1–3.3)
0.75–1.00   1.6 (0.9–2.6) 10.1 (6.0–11.0)   2.4 (0.8–6.6) 16.4 (5.4–40.9)
1.00 2.5 (2.3 – 2.8)   2.5 (2.2–2.8) 2.7 (2.2–3.4)   2.6 (2.1–3.3)
1.00–1.50   2.2 (1.5 3.2) 3.4 (2.3–5.1)   3.6 (1.8––7.4) 5.7 (2.7–10.2)
1.50 2.7 (2.4 – 3.0)   2.6 (2.3–2.9) 3.1 (2.5–3.9)   2.9 (2.3–3.6)
1.50–2.00   2.6 (2.0–3.5) 3.2 (2.4–4.3)   5.0 (3.0–8.6) 6.57 (3.7–10.2)
2.00 5.8 (5.0–6.8)   6.2 (5.3–7.4) 9.4 (7.0–13.0)   10.2 (7.4–14.6)
2.00–4.00   3.4 (2.8–4.5) 20.7 (19.3–30.7)   6.0 (4.2–8.5) 72.7 (40.0–100.4)
4.00 63.8 (45.5–91.5)   > 100 > 100 (90.9– > 100)   >100
4.00–6.00   12.5 (9.4–16.8) >100   11.5 (7.3–18.1) >100
6.00 >100   >100 >100   >100
6.00–8.00   25.7 (17.4–38.3) >100   23.2 (12.0–45.1) >100
  1. CI, confidence interval.
  2. aBroken stick model (N = 3172).
  3. bStatus: the risk of being overweight according to the BMI at that age.
  4. cChange: the risk of being overweight according to the BMI change between the status score at the start and the end of an age interval.
  5. dChange-corrected for status: e.g., status at 1 + change from 1 to 1.5.