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Table 2 Excessive and mean gestational weight gain in lifestyle intervention and control groups

From: Effects of a lifestyle intervention during pregnancy to prevent excessive gestational weight gain in routine care – the cluster-randomised GeliS trial

  Intervention (n = 946) Control (n = 939) Absolute effect size (95% CI) p value Adjusted effect sizea (95% CI) Adjusted p valuea
Women with excessive GWG (> IOM) 427/946 (45.1%) 429/939 (45.7%) 1.05 (0.76 to 1.43) 0.779 0.95 (0.66 to 1.38) 0.789
BMI 18.5–24.9 kg/m2 208/608 (34.2%) 224/624 (35.9%) 1.00 (0.68 to 1.47) 0.988 0.92 (0.61 to 1.38) 0.674
BMI 25.0–29.9 kg/m2 150/230 (65.2%) 138/200 (69.0%) 0.85 (0.55 to 1.33) 0.478 0.81 (0.51 to 1.29) 0.382
BMI 30.0–40.0 kg/m2 69/108 (63.9%) 67/115 (58.3%) 1.27 (0.75 to 2.14) 0.375 1.08 (0.62 to 1.87) 0.790
Total weight gain, kg 14.1 ± 5.3b 14.1 ± 5.2 0.28 (– 0.61 to 1.17) 0.542 0.09 (– 0.79 to 0.97) 0.838
 BMI 18.5–24.9 kg/m2 14.6 ± 4.5 14.8 ± 4.6 0.06 (– 0.79 to 0.90) 0.899 – 0.10 (– 0.93 to 0.72) 0.808
 BMI 25.0–29.9 kg/m2 14.0 ± 6.0 14.1 ± 5.5 – 0.02 (– 0.90 to 0.86) 0.958 – 0.26 (– 1.14 to 0.63) 0.569
 BMI 30.0–40.0 kg/m2 11.5 ± 6.8 10.6 ± 6.5 1.00 (– 0.90 to 2.90) 0.301 0.52 (– 1.05 to 2.09) 0.513
  1. aAdjusted for pre-pregnancy BMI, age, parity and gestational age at first visit
  2. bMean ± SD (all such values)
  3. BMI body mass index, GWG gestational weight gain, IOM Institute of Medicine [4]