Table 1 Counts and sample proportions of children with myopia using three different myopia criteria
From: Myopia in Bulgarian school children: prevalence, risk factors, and health care coverage
Grouping characteristic | Count (Sample proportions) | |||
|---|---|---|---|---|
School | Rural (Small tawn) | Urban (Capital) | Urban—Sport (Capital) | Urban (medium sized town) |
SE ≤ -0.5 D | 173 (51.64%) | 74 (54.02%) | 75 (41.67%) | 418 (56.03%) |
SE ≤ -0.5 D and decimal VA ≤ 0.8 | 33 (9.85%) | 47 (34.31%) | 17 (9.39%) | 169 (22.59%) |
SE ≤ -0.75 D and decimal VA ≤ 0.8 | 28 (8.36%) | 43 (31.38%) | 16 (8.84%) | 149 (19.91%) |