From: Maternal cadmium, iron and zinc levels, DNA methylation and birth weight
Characteristic | Number | Mean | SD | p-value |
---|---|---|---|---|
Child Gender | Â | Â | Â | 0.73 |
Male | 164 | 4.43 | (6.66) | Â |
Female | 155 | 4.65 | (5.53) | Â |
Gestation Time | Â | Â | Â | 0.12 |
Preterm (<37Â weeks) | 39 | 3.07 | (4.70) | Â |
Normal(≥37 weeks) | 280 | 4.74 | (6.28) |  |
Birth Weight | Â | Â | Â | 0.61 |
Low Birth Weight (<2500) | 31 | 4.67 | (5.93) | Â |
Normal Birth Weight(2500- < 4600) | 281 | 4.58 | (6.22) |  |
High Birth Weight (>4600) | 5 | 1.84 | (1.40) | Â |
Maternal Age | Â | Â | Â | 0.35 |
Less than 30 | 187 | 4.93 | (6.24) | Â |
30-39 | 125 | 3.96 | (6.08) | Â |
40+ | 7 | 4.28 | (2.94) | Â |
Maternal Race | Â | Â | Â | 0.03 |
African American | 111 | 4.71 | (4.65) | Â |
White | 95 | 3.13 | (5.07) | Â |
Hispanic | 101 | 5.44 | (7.63) | Â |
Other | 12 | 6.48 | (9.51) | Â |
Maternal BMI | Â | Â | Â | 0.48 |
Less than 18.5 | 9 | 5.39 | (7.46) | Â |
18.5 to less than 25 | 111 | 4.20 | (5.83) | Â |
25 to less than 30 | 78 | 4.88 | (5.90) | Â |
30 to less than 35 | 39 | 2.95 | (3.55) | Â |
35+ | 29 | 3.87 | (4.25) | Â |
Maternal Smoking Status | Â | Â | Â | 0.01 |
Smoking Prior to Pregnancy | 39 | 2.56 | (3.13) | Â |
Smoking During Pregnancy | 46 | 6.44 | (4.79) | Â |
Never Smoke | 225 | 4.42 | (6.59) | Â |
Delivery Route | Â | Â | Â | 0.02 |
Vaginal | 198 | 5.16 | (6.72) | Â |
Cesarean section | 120 | 3.50 | (4.88) | Â |