Table 5 The differences in eyeglasses ownership between male and female students
Variable | Sample (N) | Eyeglasses own | |||
|---|---|---|---|---|---|
(1) | (2) | T-test difference | P-value | ||
Male | Female | (2)-(1) | |||
n(%) | n(%) | Â | Â | ||
Panel A: Mild poor vision | |||||
 All Sample | 2965 | 138(9.42) | 99(6.60) | -2.82 | 0.005** |
 Student is the only child in the family | 332 | 26(12.32) | 5(4.13) | -8.19 | 0.014* |
 Student is the youngest child in the family | 1135 | 62(8.30) | 21(5.41) | -2.89 | 0.08 |
 Student is the oldest child in the family | 1035 | 41(10.82) | 56(8.54) | -2.28 | 0.225 |
 Student is the middle child in the family | 463 | 9(7.03) | 17(5.07) | -1.96 | 0.414 |
Panel B: Moderate to severe poor vision | |||||
 All Sample | 1974 | 269(29.02) | 315(30.09) | 1.07 | 0.604 |
 Student is the only child in the family | 238 | 49(33.79) | 23(24.73) | -9.06 | 0.139 |
 Student is the youngest child in the family | 708 | 115(26.08) | 81(30.34) | 4.06 | 0.220 |
 Student is the oldest child in the family | 727 | 89(32.96) | 153(33.48) | 0.52 | 0.887 |
 Student is the middle child in the family | 301 | 16(22.54) | 58(25.22) | 2.68 | 0.648 |