TABLE 3.
Bivariate Analyses Based on Maternal Gender Prediction
| Gender Prediction | Girl (n=28) | Boy (n=56) | P value |
|---|---|---|---|
| Gestational age in weeks; mean (SD) | 14.3 (1.4) | 15.0 (1.7) | 0.05a |
| Maternal age in years; mean (SD) | 27.2 (3.1) | 28.6 (2.6) | 0.03a |
| Husband’s age in years; mean (SD) | 29.9 (2.5) | 30.8 (3.2) | 0.21a |
| Number of people in household; mean (SD) | 2.7 (1.4) | 2.3 (0.8) | 0.16a |
| Income in RMB; median (range) | 50,000 (4000–350,000) | 55,000 (10000–300,000) | 0.88b |
| Maternal education: Above high school (yes/no) | 15/13 | 36/20 | 0.34c |
| Maternal education: Bachelor’s degree (yes/no) | 9/19 | 18/38 | 1.00 c |
a
Student’s t-test;
b
Mann-Whitney U-test;
c
Chi-square test; SD = Standard deviation.