Table 3 Difference between male and female children in baseline in different income categories

1. Baseline visual acuity (LogMAR)

0.662

0.615

0.047**

0.029**

0.645

0.624

0.021*

0.055*

(0.015)

(0.015)

(0.008)

(0.008)

2. Family has taken student to a vision exam (1 = yes)

0.217

0.369

−0.152***

0.000***

0.339

0.339

0.000

0.987

(0.027)

(0.031)

(0.017)

(0.018)

3. Student has glasses at baseline (1 = yes)

0.146

0.199

−0.053

0.132

0.196

0.200

−0.004

0.851

(0.024)

(0.026)

(0.014)

(0.015)

4. Student can see the blackboard from his/her seat (1 = yes)

0.566

0.504

0.062

0.182

0.505

0.491

0.013

0.614

(0.033)

(0.033)

(0.018)

(0.019)

5. Student blinks eyes or turns head to see things clearly (1 = yes)

0.562

0.627

−0.065

0.154

0.639

0.632

0.006

0.799

(0.033)

(0.032)

(0.017)

(0.018)

6. Myopia knowledge index (Score 0–9)

2.619

2.928

−0.308*

0.062*

2.992

3.241

−0.249***

0.006***

(0.116)

(0.117)

(0.063)

(0.065)

7. Student thinks he/she is myopic (1 = yes)

0.336

0.453

−0.117**

0.010**

0.478

0.491

−0.013

0.619

(0.031)

(0.032)

(0.018)

(0.019)

Number of Observations

n = 226

n = 236

n = 910

n = 887