Table 6.
Average Impact on Vision Knowledge, Eyeglasses Usage and Eyeglasses Compliance
| Vision Knowledge | Eyeglasses Usage | Eyeglasses Compliance | |||||||
|---|---|---|---|---|---|---|---|---|---|
| B | P-value | 95% CI | B | P-value | 95% CI | B | P-value | 95% CI | |
| 1. Education Treatment (1=Yes) | 0.95 | <0.001 | (0.663–1.230) | 0.00 | 0.946 | (−0.070–0.075) | 0.04 | 0.118 | (−0.010–0.084) |
| 2. Free eyeglasses, no education Treatment (1=Yes) | 0.07 | 0.618 | (−0.201–0.338) | 0.11 | 0.008 | (0.030–0.195) | 0.04 | 0.048 | (0.000–0.081) |
| 3. Free eyeglasses, and education Treatment (1=Yes) | 0.93 | <0.001 | (0.482–1.380) | 0.18 | <0.001 | (0.095–0.266) | 0.11 | <0.001 | (0.066–0.162) |
| 4. Baseline vison knowledge (0–8) | 0.25 | <0.001 | (0.201–0.291) | 0.01 | 0.099 | (−0.002–0.022) | 0.02 | <0.001 | (0.009–0.029) |
| 5. Age (Year) | −0.08 | 0.178 | (−0.194–0.036) | 0.02 | 0.116 | (−0.005–0.044) | −0.01 | 0.461 | (−0.025–0.011) |
| 6. Grade (1=Grade5) | 0.13 | 0.281 | (−0.103–0.354) | −0.01 | 0.725 | (−0.075–0.052) | −0.03 | 0.152 | (−0.065–0.010) |
| 7. Gender (1=Male) | 0.42 | <0.001 | (0.244–0.600) | −0.01 | 0.578 | (−0.055–0.031) | 0.01 | 0.776 | (−0.029–0.039) |
| 8. Usage Baseline | 0.58 | <0.001 | (0.300–0.851) | 0.34 | <0.001 | (0.273–0.408) | 0.40 | <0.001 | (0.323–0.469) |
| 9. Baseline Aware of being Myopic (1=Yes) | 0.00 | 0.999 | (−0.205–0.205) | 0.10 | <0.001 | (0.056–0.147) | 0.05 | 0.008 | (0.013–0.086) |
| 10. Living at School (1=Yes) | 0.16 | 0.276 | (−0.131–0.457) | −0.03 | 0.288 | (−0.090–0.027) | −0.05 | 0.019 | (−0.086–0.008) |
| 11. Baseline visual acuity of worse eye (LogMAR) | −0.30 | 0.195 | (−0.765–0.158) | 0.35 | <0.001 | (0.239–0.464) | 0.30 | <0.001 | (0.206–0.397) |
| 12. Baseline Standardized Math Scores | 0.07 | 0.135 | (−0.023–0.167) | 0.01 | 0.509 | (−0.014–0.028) | 0.01 | 0.235 | (−0.007–0.030) |
| 13. Father has high school education or above (1=Yes) | −0.23 | 0.074 | (−0.049–0.023) | −0.03 | 0.282 | (−0.078–0.023) | 0.01 | 0.577 | (−0.036–0.065) |
| 14. Mother has high school education or above (1=Yes) | 0.44 | 0.002 | (0.167–0.703) | −0.01 | 0.871 | (−0.070–0.060) | −0.01 | 0.728 | (−0.055–0.038) |
| 15. Both Parents migrated for Work (1=Yes) | −0.06 | 0.695 | (−0.345–0.230) | −0.00 | 0.935 | (−0.058–0.054) | −0.01 | 0.789 | (−0.062–0.047) |
| 16. Household Wealth | 0.04 | 0.557 | (−0.087–0.161) | 0.01 | 0.356 | (−0.012–0.033) | 0.01 | 0.552 | (−0.014–0.027) |
| 17. Province (1=Gansu) | 0.09 | 0.6 | (−0.258–0.444) | −0.02 | 0.558 | (−0.092–0.050) | −0.05 | 0.027 | (−0.093–0.006) |
| Adjusted R-squared | 0.13 | 0.19 | 0.24 | ||||||
| Mean in Control group | 2.93 | 0.25 | 0.15 | ||||||
Notes: Data source, baseline survey and evaluation survey. This table presents the estimates on how different interventions affect students’ vision knowledge, eyeglasses usage and eyeglasses compliance. The dependent variables are the correct score of vision knowledge in evaluation survey for column (1), the eyeglasses usage indicator in evaluation survey for column (2), the eyeglasses compliance indicator in evaluation survey for column (3). The independent variable is whether receive education intervention, whether receive free eyeglasses intervention, whether receive education plus free eyeglasses intervention. In column (1), the Mean in Control group means that the average correct score of vision knowledge of students in the control group is 2.93; in column (2), it means that the eyeglasses usage rate of students in the control group is 25%, in column (3), it means that the eyeglasses compliance rate of students in the control group is 15%.