Table 2 The differences in vision health between male and female students
Variable | Sample (N) | LogMAR | Visual impairment | ||||||
|---|---|---|---|---|---|---|---|---|---|
(1) | (2) | Â | P-value | (3) | (4) | Â | P-value | ||
Male | Female | T-test difference | Male | Female | T-test difference | ||||
mean(SD) | mean(SD) | (2)-(1) | n(%) | n(%) | (4)-(3) | ||||
All sample | 19934 | 0.20(0.27) | 0.23(0.28) | 0.03 | 0.000*** | 2329(23.03) | 2547(26.68) | 3.65 | 0.000*** |
Student is the only child in the family | 1939 | 0.22(0.29) | 0.26(0.30) | 0.04 | 0.003** | 356(27.70) | 214(32.72) | 5.02 | 0.022* |
Student is the youngest child in the family | 7723 | 0.19(0.27) | 0.23(0.28) | 0.04 | 0.000*** | 1188(22.75) | 655(26.18) | 3.43 | 0.000*** |
Student is the oldest child in the family | 6701 | 0.20(0.28) | 0.24(0.29) | 0.04 | 0.000*** | 649(22.55) | 1113(29.11) | 6.56 | 0.011** |
Student is the middle child in the family | 3571 | 0.18(0.25) | 0.20(0.28) | 0.02 | 0.012* | 199(19.86) | 565(21.99) | 2.13 | 0.163 |