. Author manuscript; available in PMC: 2013 Jul 10.

Published in final edited form as: Womens Health Issues. 2011 May 4;21(4):265–271. doi: 10.1016/j.whi.2011.03.007

Table 3.

Analysis of Intervention Effects on Pregnancy Weight Gain Among Women Who Gave Birth to Singletons Over the 12-Month Follow-up Period (n = 37)^*

	Intervention	Control	Intervention Effect^†
	Intervention	Control	Mean Difference (95% CI)	p-Value
Pregnancy weight gain, in pounds^§	23.4 (16.5, 30.3)	41.4 (28.9, 53.8)	−17.95 (−33.42, −2.49)	.023
Pregnancy weight gain, controlling for pre-pregnancy obesity^‡,^§	23.8 (18.3, 29.2)	34.2 (23.8, 44.7)	−10.46 (−24.27, 3.36)	.138
			Odds Ratio (95% CI)
Pregnancy weight gain exceeded IOM guidelines^¶	42.9%	55.6%	0.685 (0.137, 3.431)	.645

Abbreviation: CI, confidence interval.

Excludes 4 preterm births and 4 women for whom weight gain at delivery was missing on the birth record. Models control for baseline age and educational level.

^†

Model-based estimates.

^‡

Adjusted means and confidence intervals shown for intervention and control groups.

^§

Obesity is defined as BMI ≥ 30.0.

^¶

Mother’s pregnancy weight gain exceeded IOM (2009) recommended weight gain for her pre-pregnancy BMI category (see text).