Table 1.
Demographic Characteristics of the Study Sample (n = 348)
| Demographic Characteristic | Mean±SD (Range) |
|---|---|
| Maternal age (years) | 29.0±4.121, 45 |
| Maternal education (%) | |
| < High school | 26.6 |
| ≥ High school | 73.4 |
| Sex of newborn (%female) | 44.8 |
| Birth weight (g) | 3490.05±654.11 (2500, 7800) |
| Gestational age (week) | 39.53±1.18 (35, 46) |
| Cord adducts (ng/mL) | 1.9±3.5 (0.04, 20.08) |
| Detect rate (%) | 182(52.3) |
| Median | 0.68 |
| DQs at 6 months olda | |
| Adaptive | 97.3±4.8 (66, 115) |
| Gross motor | 97.3±4.8 (77, 110) |
| Fine motor | 98.3±6.5 (82, 114) |
| Language | 99.8±4.8 (75, 112) |
| Personal–social | 98.3±6.2 (80, 118) |
| DQs at 12 months olda | |
| Adaptive | 98.7±6.5 (81, 119) |
| Gross motor | 101.6±8.7 (80, 156) |
| Fine motor | 103.0±9.0 (74, 154) |
| Language | 96.4±6.9 (72, 136) |
| Personal–social | 102.7±8.0 (84, 133) |
Note: an = 211.
Abbreviations: DQ, developmental quotient; SD, standard deviation.