Table 2.

Estimates of Intervention Effects on Behaviors, Weight, and BMI at 6- and 12-Month Follow-up (n = 362)^*

	6-Month Follow-Up				12-Month Follow-up
	Intervention	Control	Intervention Effect†	p-Value	Intervention	Control	Intervention Effect†	p-Value
			Odds Ratio (95% CI)				Odds Ratio (95% CI)
Reads food labels for nutritional values‡	42.8%	34.9%	1.97 (1.07, 3.65)	.030	36.9%	44.0%	0.70 (0.40, 1.23)	.218
Uses daily multivitamin with folic acid	62.9%	43.0%	2.67 (1.56, 4.57)	<.001	57.9%	40.5%	2.15 (1.19, 3.88)	.011
Meets recommended physical activity level§	37.0%	40.7%	0.99 (0.57, 1.71)	.970	36.9%	39.8%	1.00 (0.57, 1.76)	.992
Daily fruit consumption¶	41.5%	47.7%	0.66 (0.38, 1.16)	.153	38.3%	40.5%	0.68 (0.39, 1.21)	.190
Daily vegetable consumption¶	44.7%	40.7%	1.17 (0.67, 2.04)	.589	42.1%	40.5%	0.99 (0.57, 1.71)	.958
			Mean Difference (95% CI)				Mean Difference (95% CI)
Weight (in pounds)||	160.6 (158.7, 162.6)	163.2 (160.5, 166.0)	−2.61 (−5.93, 0.71)	.123	162.1 (159.5, 164.6)	166.4 (163.4, 169.4)	−4.33 (−8.16, −0.49)	.027
BMI||	27.1 (26.7, 27.4)	27.1 (27.1, 28.0)	−0.45 (−1.00, 0.10)	.110	27.3 (26.9, 27.7)	28.0 (27.5, 28.6)	−0.75 (−1.39, −0.11)	.021

Abbreviation: CI, confidence interval.

^*All models control for baseline level on the dependent variable, age and educational level (see text).

^†Model-based estimates.

^‡Defined as all or most of the time versus some of the time, rarely, or never.

^§Defined as ≥30 minutes of moderate or strenuous physical activity on ≥4 days per week.

^¶Defined as ≥1 serving per day in a typical week.

^||Adjusted means and confidence intervals. For women pregnant at the time of the 6- or 12-month follow-up interview, weight, and BMI were set to missing. Additional covariate controls for incident pregnancy during follow-up period.