Table 2.
Gestational weight gain (GWG) and postpartum weight retention in the intervention versus contemporary control group
| Characteristics | Intervention | Contemporary control | P value* |
|---|---|---|---|
| Gestational weight gain | N = 16 | N = 38 | |
|
| |||
| Total GWG, lbs, mean (SE) | 24.9 (13.3) | 26.2 (17.6) | 0.23 |
| BMI-adjusted total GWG, lbs, mean (SE) | 24.1 (4.1) | 26.5 (2.7) | 0.63 |
| Meeting IOM guidelines, % | 0.07 | ||
| Below recommendations | 12.5 | 7.9 | |
| Met recommendations | 31.2 | 28.9 | |
| Exceeded recommendations | 56.3 | 63.2 | |
| BMI-adjusted total GWG by meeting IOM guideline categories, lbs, mean (SE) | |||
| Below recommendations | 3.1 (3.7) | 3.3 (1.5) | 0.97 |
| Met recommendations | 18.2 (1.6) | 18.6 (2.2) | 0.89 |
| Exceeded recommendations | 31.6 (3.7) | 36.9 (2.2) | 0.24 |
| Weekly rate of weight gain in the 2nd and 3rd trimesters, lbs, mean (SD) | 0.89 (0.51) | 0.96 (0.68) | 0.24 |
|
| |||
| Postpartum weight retention, sample size | n = 14 | No data | |
|
| |||
| Weight retention – 4 months postpartum | |||
| Net weight retention, lbs, mean (SD) | 2.6 (12.6) | No data | |
| Subjects at or below prepregnancy weight, % | 50.0 | No data | |
| Weight retaining ≥ 5 lbs, % | 35.7 | No data | |
Abbreviations: BMI=body mass index, lbs=pounds, SE = standard error, IOM = Institute of Medicine, SD = standard deviation.
*
P-values were based on 2-sided Fisher’s exact tests for categorical variables and independent sample t-tests for continuous variables.