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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]