From: Effects of maternal dioxin exposure on newborn size at birth among Japanese mother–infant pairs
Study population characteristics | Values |
---|---|
Mothers | |
Agea (years) | 29.8 (4.0, 20–38) |
Heighta (cm) | 158.0 (4.6, 147–171) |
Weight before pregnancya (kg) | 52.5 (7.8, 41–96) |
BMI before pregnancya | 21.0 (2.7, 17.0–34.0) |
Weight (kg) before deliverya | 61.5 (7.8, 44.5–98) |
BMI before deliverya | 24.6 (2.7, 19.8–34.7) |
Primipara, n (%) | 40 (53.3) |
Delivery by cesarian section, n (%) | 9 (12.0) |
Smoking habit before pregnancy, n (%) | 11 (14.7) |
Smoking habit during pregnancy, n (%) | 2 (2.7) |
Alcohol consumption before pregnancy, n (%) | 24 (32.0) |
Alcohol consumption during pregnancy, n (%) | 6 (8.0) |
Occupation (house-wife), n (%) | 54 (72.0) |
Infants | |
Gestational age (weeks)a | 38.9 (1.5, 34–42) |
Sex, number of boys, (sex ratio) | 37 (0.97) |
Lengtha (cm) | 49.5 (2.0, 42–53) |
Weighta (g) | 3,075 (440.5, 2028–4052) |
Chest circumferencea (cm) | 32.0 (2.1, 27–37.5) |
Head circumferencea (cm) | 33.2 (1.4, 30–36) |