From: The Taiwan Birth Panel Study: a prospective cohort study for environmentally- related child health
Characteristics, N (%) | TBPS study | Population-based survey |
---|---|---|
Total | 486 | 21,248 |
Mother's characteristics | Â | Â |
Maternal age (%) | Â | Â |
   <25 years | 9.9 | 22.3 |
   25-29 years | 26.7 | 37.4 |
   30-34 years | 40.9 | 29.4 |
   ≥35 years | 22.4 | 10.8 |
Maternal education (%) | Â | Â |
   Junior high school and below | 9.3 | 14.8 |
   Senior high school | 46.3 | 39.9 |
   College and above | 44.4 | 45.3 |
Ethnic origin | Â | Â |
   Taiwanese | 91.8 | 86.6 |
   Foreign-born | 8.2 | 13.4 |
Parity (%) | Â | Â |
   Primipara | 47.3 | 50.4 |
   Multipara | 52.7 | 46.6 |
Family characteristics | Â | Â |
Marital status (%) | Â | Â |
   Married | 97.5 | 97.1 |
   Unmarried | 2.5 | 2.8 |
Annual family income (%, NT$) | Â | Â |
   < 600,000 | 27.6 | 41.7 |
   600,000-1,000,000 | 32.5 | 36.6 |
   1,000,000-1,500,000 | 24.5 | 14.5 |
   ≥ 1,500,000 | 15.4 | 7.2 |
Infant's characteristics | Â | Â |
Plurality (%) | Â | Â |
   Singleton | 98.8 | 97.4 |
   Twin | 1.2 | 2.6 |
Infant gender (%) | Â | Â |
   Male | 50.8 | 52.5 |
   Female | 49.2 | 47.5 |
Birth outcomes | Â | Â |
   Gestational age (week, mean ± SD) | 38.5 ± 1.7 | 38.4 ± 1.6 |
   Birth weight (g, mean ± SD) | 3157.9 ± 476.6 | 3104.2 ± 448.1 |