Table 2 Chi-square tests of newborn weight by maternal BMI in five categories
From: Effect of maternal body mass index on pregnancy outcome and newborn weight
BMI | Birth Weight | p- value of chi-square test | ||
|---|---|---|---|---|
|  | 2500 ≥ | 2500 - 4000 | 4000 ≤ |  |
20 > | 23 | 105 | 0 | 0.001** |
| Â | 18% | 8.3% | 0% | Â |
20-24.9 | 28 | 370 | 14 | 0.001 |
| Â | 6.8% | 89.8% | 3.4% | Â |
25-29.9 | 34 | 311 | 11 | 0.372 |
| Â | 9.6% | 78.5% | 2.9% | Â |
30 - 34.9 | 9 | 79 | 10 | 0.01** |
| Â | 9.2% | 80.6% | 10.2% | Â |
> 35 | 0 | 5 | 1 | 0.01** |
| Â | Â | 83.4% | 16.6% | Â |