Table 1 Demographic characteristics of the mothers (n = 237)
Characteristics | n | % |
|---|---|---|
Ages (years) | ||
  < 30 | 62 | 26.2 |
 30–34 | 95 | 40.1 |
  ≥ 35 | 80 | 33.8 |
Education | ||
 Senior high school or less | 53 | 22.4 |
 Junior college | 76 | 32.1 |
 College graduate | 68 | 28.7 |
 Graduate degree or above | 40 | 16.9 |
Monthly family income | ||
  < ¥5000 (about US$737) | 37 | 15.6 |
 ¥5000–¥9000 (about US$737–US$1327) | 115 | 48.5 |
  > ¥9000 (aboutUS$1327) | 85 | 35.9 |
Family history of diabetes | ||
 No | 164 | 69.2 |
 Yes | 59 | 24.9 |
 Not known | 14 | 5.9 |
Pre-pregnancy BMI (kg/m2) | ||
  < 18.5 | 38 | 16.0 |
 18.5–24.9 | 165 | 69.6 |
  ≥ 25.0 | 34 | 14.3 |