Table 1.
Demographic and Medical History by BMI and Weight Gain Groups
| Variable | Underweight | Normal | Overweight | Obese | χ2 | Undergain | Appropriate Gain |
Overgain | χ2 |
|---|---|---|---|---|---|---|---|---|---|
| n | 110 | 361 | 144 | 226 | 168 | 213 | 460 | ||
| % | 13.1% | 42.9% | 20% | 25.5% | 54.7% | ||||
| Weight gain (lbs) | 35.9 ± 18.8 | 36.3 ± 20.3 | 31.2 ± 24.9 | 24.7 ± 27.5 | 13.74 | ||||
| p = 0.001 | |||||||||
| Undergain | 33% | 29% | 19% | 0% | 100.56 | ||||
| Appropriate | 31% | 22% | 16% | 33% | p < 0.001 | ||||
| Overgain | 36% | 49% | 65% | 67% | |||||
| Age (y) | |||||||||
| 14–19 | 52.6% | 56.3% | 41.0% | 38.7% | 22.03 | 52.5% | 47.8% | 48.0% | 0.20 |
| 20–25 | 47.4% | 43.7% | 59.0% | 61.3% | p = 0.001* | 47.5% | 52.2% | 52.0% | p = 0.55 |
| Race | |||||||||
| Black | 74.6% | 79.6% | 79.2% | 76.1% | 3.83 | 85.9% | 75.4% | 77.0% | 11.57 |
| Latina | 16.7% | 12.6% | 13.9% | 14.2% | p = 0.70 | 16.7% | 16.5% | 13.1% | p = 0.07 |
| White/other | 8.7% | 7.8% | 6.9% | 9.7% | 8.7% | 8.1% | 9.9% | ||
| Parity | |||||||||
| Nulliparous | 71.9% | 69.4% | 56.9% | 56.5% | 17.54 | 61.6% | 58.5% | 66.6% | 4.71 |
| p = 0.001* | p = 0.095 | ||||||||
| Smoking | 20.2% | 19.1% | 18.8% | 21.2% | 0.69 | 17.1% | 15.6% | 22.8% | 6.13 |
| during | p = 0.88 | p = 0.04* | |||||||
| Pregnancy | |||||||||
| Alcohol use | 5.3% | 8.6% | 7.6% | 8.0% | 1.16 | 6.8% | 8.5% | 8.1% | 0.43 |
| during | p = 0.70 | p = 0.81 | |||||||
| pregnancy |
*
p < 0.05.
BMI, body mass index.