Variable | Sample (N) | Vision exam | |||
---|---|---|---|---|---|
(1) | (2) | T-test difference | P -value | ||
Male | Female | (2)-(1) | |||
n(%) | n(%) | Â | |||
All Sample | 19934 | 1893(18.23) | 1604(16.80) | -1.43 | 0.001*** |
Student is the only child in the family | 1939 | 281(21.87) | 146(22.32) | 0.45 | 0.819 |
Student is the youngest child in the family | 7723 | 854(16.36) | 409(16.35) | -0.01 | 0.991 |
Student is the oldest child in the family | 6701 | 595(20.67) | 701(18.34) | -2.33 | 0.017* |
Student is the middle child in the famil | 3571 | 163(16.27) | 348(13.55) | -2.72 | 0.037* |