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Table 2 Gestational weight gain and birth weight by baseline BMI category (n = 522)

From: Is birth weight the major confounding factor in the study of gestational weight gain?: an observational cohort study

Baseline BMI

Mean total GWG (kg)

Mean BW (g)

Mean net GWG (kg)

Underweight (n = 15)

12.5 (8.3–19.4)

3266 (2670–3680)

9.2 (5.5–15.7)

Normal (n = 284)

13.2 (3.7–26.9)

3555 (2425–4860)

9.6 (0.6–24.1)

Overweight (n = 141)

12.6 (0.6–28.4)

3617 (2166–4720)

8.9 (− 2.8–24.8)

Obese I (n = 48)

10.3 (− 4.6–21.7)

3707 (2160–5120)

6.6 (− 7.7–18.0)

Obese II & III (n = 34)

6.6 (− 3.3–23.4)

3523 (2880–4580)

3.1 (−6.8–19.9)

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BMC Pregnancy and Childbirth

ISSN: 1471-2393

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