Variables | N/Mean | Percentage/SD |
---|---|---|
Demographic characteristics | ||
 Age, y | 29.2 | 4.3 |
 Education | ||
  Primary school | 2 | 0.4 |
  Junior high school | 113 | 20.2 |
  High School/Technical School | 36 | 6.4 |
  Technical secondary school/technical | 39 | 7.0 |
  Junior college | 146 | 26.1 |
  University and above | 223 | 39.9 |
 Occupation | ||
  Employee | 326 | 58.3 |
  Unemployed | 125 | 22.4 |
  Freelance | 58 | 10.4 |
  Self-employed | 44 | 7.9 |
  Farmer | 1 | 0.2 |
  Other | 5 | 0.9 |
 Annual household income, CNY | ||
  < 30,000 | 8 | 1.4 |
  30,000—50,000 | 22 | 3.9 |
  50,001—70,000 | 32 | 5.7 |
  70,001—100,000 | 113 | 20.2 |
  100,001—120,000 | 120 | 21.5 |
  > 120,000 | 264 | 47.2 |
Biomedical characteristics | ||
 Pre-pregnancy BMI (kg/m2)a | 22.4 | 3.5 |
  Underweight | 45 | 8.1 |
  Normal weight | 307 | 54.9 |
  Overweight | 113 | 20.2 |
  Obesity | 94 | 16.8 |
 Parity | ||
  Primipara | 257 | 46.0 |
  Multipara | 302 | 54.0 |
IMB factors | ||
 Information | 15.0 | 3.4 |
 Motivation | 19.5 | 4.2 |
 Behavioral skill | 16.8 | 4.2 |
Gestational weight management | ||
 Weight management | 57.8 | 12.6 |