Number of cases/ controls | Crude odds ratio | Adjusted odds ratio | 95% confidence interval | Adjusted odds ratio | 95% confidence interval | |
Tuition lessons in primary school | ||||||
No | 127/26 | 1.0 | 1.0 | Reference | 1.0 | Reference |
Yes | 248/25 | 2.0 | 2.0 | 1.1-3.7 | 2.6 | 1.4-4.9 |
Educational stream | ||||||
Normal | 83/24 | 1.0 | 1.0 | Reference | 1.0 | Reference |
Gifted/special/express | 287/25 | 3.3 | 2.8 | 1.4-5.7 | 3.8 | 2.0-7.3 |
Father's highest educational level | ||||||
Primary/secondary | 266/42 | 1.0 | 1.0 | Reference | 1.0 | Reference |
Pre-university/tertiary | 112/8 | 2.0 | 2.0 | 0.9-4.6 | 2.2 | 1.0-5.0 |
Educational level | ||||||
Primary/secondary | 35/13 | 1.0 | 1.0 | Reference | 1.0 | Reference |
Pre-university/tertiary | 340/37 | 3.4 | 3.4 | 1.6-6.9 | 4.1 | 1.9-8.8 |
↵Odds ratios adjusted for parental history of myopia.
↵Odds ratio of tuition lessons in primary school adjusted for parental history of myopia and education.
↵Odds ratio of educational stream adjusted for parental history of myopia and tuition lessons in primary school.
↵Odds ratio of father's education adjusted for parental history of myopia and tuition lessons in primary school.
↵Odds ratio of educational level adjusted for parental history of myopia and tuition lessons in primary school.