Subgroup analysis of myopic macular degeneration prevalence in the world population
| Subgroup | No. of study/data | Pooled prevalence and 95% CI (%) | Heterogeneity, I2 (%) | Q-value | P value |
| Sex | |||||
| Male | 11 | 1.9 (1.1 to 3.5) | 97.707 | 436.158 | <0.001 |
| Female | 11 | 2.6 (1.6 to 4.3) | 97.872 | 469.866 | |
| District | |||||
| Urban | 8 | 3.1 (1.8 to 5.2) | 98.752 | 560.962 | <0.001 |
| Rural | 4 | 0.9 (0.5 to 1.4) | 91.226 | 34.191 | |
| Region | |||||
| Asia | 11 | 1.9 (1.4 to 2.6) | 96.553 | 290.110 | <0.001 |
| USA and Australia | 2 | 3.7 (0.4 to 26.5) | 99.507 | 202.893 | |
| Age (years) | |||||
| 40–49 | 3 | 1.3 (1.0 to 1.7) | 0 | 1.190 | <0.001 |
| 50–59 | 7 | 2.0 (0.9 to 4.4) | 97.830 | 276.453 | |
| 60–69 | 8 | 3.0 (1.5 to 5.8) | 97.833 | 323.001 | |
| 70+ | 8 | 4.5 (2.6 to 7.8) | 96.338 | 191.169 | |
| Axial length (mm) | |||||
| <26 | 3 | 0.9 (0.1 to 7.1) | 95.796 | 47.571 | 0.001 |
| ≥26 | 3 | 8.4 (2.1 to 28.2) | 96.696 | 60.529 | |
| SE refraction levels (diopters) | |||||
| 0.00 to −5.99 | 4 | 0.5 (0.1 to 2.0) | 95.527 | 67.068 | 0.08 |
| ≤−6.00 | 4 | 32.1 (16.9 to 52.2) | 93.259 | 44.501 | |
| Conducted time | |||||
| 1993–2006 | 7 | 1.3 (0.8 to 2.2) | 95.658 | 138.200 | <0.001 |
| 2007–2017 | 6 | 3.5 (1.9 to 6.3) | 99.052 | 527.669 | |
| Grading system | |||||
| V | 5 | 1.6 (1.0 to 2.6) | 96.159 | 104.132 | <0.001 |
| M | 4 | 4.7 (2.4 to 8.9) | 99.024 | 307.388 |
M, International META-PM Classification; META-PM, meta analyses of pathologic myopia; SE, spherical equivalent; V, PM Classification by Vongphanit.