A Population-Based Study on Gestational Weight Gain according to Body Mass Index in the Southeast of Brazil

Table 2

Weight gain and risk of excessive weight gain according to BMI category (IOM, 2009) of women in southeast of Brazil.

BMI	Mean WG	𝑃 value**	WG excessive (%)	OR	CI 95%	𝑃^∗
Total sample	13.08±6.08
BMI < 18.5	13.70±4.25	<0.0001	14.5	0.37	0.17–0.80	0.009
BMI ≥ 18.5 < 25	13.69±5.21		30.5	Reference	—	—
BMI ≥ 25 < 30	12.38±6.29		55.9	2.7	1.05–4.01	<0.0001
BMI ≥ 30	9.57±8.10		53.7	2.62	1.67–4.12	<0.0001

∗Chi-square; **Kruskal-Wallis for mean of weight gain among BMI categories, OR: odds ratio; CI: confidence interval; WG: weight gain.