Characteristics by SGA status
| Non-SGA (N=1408) | SGA (N=164) | p Value | |
|---|---|---|---|
| Mothers' demographic information | |||
| Age (years, means (SD)) | 26.6 (3.6) | 26.3 (3.4) | NS |
| Han ethnicity (%) | 92.1 | 92.7 | NS |
| Education ≥9 years (%) | 78.9 | 79.3 | NS |
| Rural residence (%) | 28.1 | 29.3 | NS |
| Maternal insurance (%) | 51.1 | 54.3 | NS |
| Previous disease history (%) | 3.6 | 4.9 | NS |
| Primiparity (%) | 84.6 | 87.2 | NS |
| Have never been pregnant (%) | 60.7 | 64.0 | NS |
| Mothers’ physical information measured at GCT | |||
| Height (cm, means (SD)) | 162.9 (4.8) | 160.8 (4.7) | <0.0001 |
| BMI (kg/m2, means (SD)) | 25.4 (3.5) | 24.0 (3.4) | <0.0001 |
| Systolic blood pressure (mm Hg, means (SD)) | 108.2 (10.9) | 106.8 (10.6) | NS |
| Diastolic blood pressure (mm Hg, means (SD)) | 69.5 (7.5) | 69.2 (7.4) | NS |
| BG level (mmol/L, means (SD)) | 6.3 (0.9) | 6.2 (1.0) | <0.05 |
| Infants’ physical information measured at birth | |||
| Sex of male (%) | 50.0 | 51.2 | NS |
| Gestational age (weeks, means (SD)) | 39.2 (1.1) | 39.3 (1.1) | NS |
| Weight (g, means (SD)) | 3465.0 (367.1) | 2742.3 (224.7) | <0.0001 |
| Stature length (cm, means (SD)) | 50.3 (1.1) | 48.8 (2.1) | <0.0001 |
| Ponderal index (g/cm3, means (SD)) | 2.7 (0.2) | 2.4 (0.4) | <0.0001 |
BG, blood glucose; BMI, body mass index; GCT, glucose challenge test; SGA, small-for-gestational age.