Total weight gain | Rates of weight gain* second and third trimester | |||
Prepregnancy BMI | Range in kg | Range in lb | Mean (range) in kg/week | Mean (range) in lb/week |
Underweight (<18.5 kg/m2) | 12.5 to 18 | 28 to 40 | 0.51 (0.44 to 0.58) | 1 (1 to 1.3) |
Normal weight (18.5 to 24.9 kg/m2) | 11.5 to 16 | 25 to 35 | 0.42 (0.35 to 0.50) | 1 (0.8 to 1) |
Overweight (25.0 to 29.9 kg/m2) | 7 to 11.5 | 15 to 25 | 0.28 (0.23 to 0.33) | 0.6 (0.5 to 0.7) |
Obese (≥30.0 kg/m2) | 5 to 9 | 11 to 20 | 0.22 (0.17 to 0.27) | 0.5 (0.4 to 0.6) |
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