Table 1 Baseline characteristics of sample by treatment arm (n = 1689)
Characteristica | Placebo control n = 563 | Intervention n = 1126 |
|---|---|---|
BMI Income Strata | n (%) | n (%) |
 Normal Low Income | 115 (20.4) | 242 (21.5) |
 Normal Not-Low Income | 186 (33.0) | 359 (31.9) |
 Overweight + Obese Low Income | 125 (22.2) | 252 (22.4) |
 Overweight + Obese Not-Low Income | 137 (24.3) | 273 (24.3) |
Initial BMI (kg/m2) | Â | Â |
 Median (25th, 75th percentile) | 24.7 (21.9, 28.3) | 24.7 (22.0, 28.6) |
Age at entry | Â | Â |
 18 to 24.99 y | 167 (29.7) | 358 (31.8) |
 25 to 29.99 y | 205 (36.4) | 366 (32.5) |
 30 to 34.99 y | 191 (33.9) | 402 (35.7) |
Race and ethnicity | Â | Â |
 Non-Hispanic white | 340 (64.8) | 667 (63.8) |
 Non-Hispanic African American | 111 (21.1) | 246 (23.5) |
 Hispanic/Latina | 27 (5.1) | 73 (7.0) |
 Other | 47 (9.0) | 60 (5.7) |
 Missing (n) | 38 | 80 |
Parity | Â | Â |
 Nulliparous | 264 (47.1) | 511(45.4) |
 Primiparous | 172 (30.7) | 378 (33.6) |
 Multiparous | 125 (22.3) | 236 (21.0) |
 Missing (n) | 2 | 1 |
Education | Â | Â |
 High school or less | 91 (20.2) | 200 (22.5) |
 Some college | 133 (29.6) | 258 (29.0) |
 College graduate | 113 (25.1) | 213 (23.9) |
 Graduate or professional degree | 113 (25.1) | 219 (24.6) |
 Missing (n) | 113 | 236 |
Smoked in pregnancy | Â | Â |
 Yes | 66 (12.6) | 114 (11.0) |
 No | 457 (87.4) | 923 (89.0) |
 Missing (n) | 40 | 89 |
Home internet use | Â | Â |
 Most days/week | 335 (71.7) | 665 (72.0) |
 A few times or less | 132 (28.3) | 259 (28.0) |
 Missing (n) | 96 | 202 |