Table 5 Sex ratio by parity and sex composition of previous children
From: The effect of children on female labor force participation in urban Iran
Birth order | Previous children | Observations | Sex ratio | 95% confidence interval | |
|---|---|---|---|---|---|
| Â | Â | Â | Lower bound | Upper bound | |
First | Â | 132,599 | 1.055 | 1.044 | 1.066 |
Second | girl | 51,689 | 1.032 | 1.015 | 1.050 |
| Â | boy | 53,920 | 1.049 | 1.031 | 1.066 |
Third | girl, girl | 17,356 | 1.082 | 1.051 | 1.115 |
| Â | girl, boy | 33,703 | 1.067 | 1.044 | 1.090 |
| Â | boy, boy | 17,685 | 1.080 | 1.048 | 1.112 |