Table 2. Baseline (Age 20 Years) Ocular Measures According to Incident Myopia.
| Measure | Developed myopia, median (IQR) | Group difference statistical outcomea | ||
|---|---|---|---|---|
| Yes | No | F statistic | P value | |
| Eyes, No. | 122 | 925 | NA | NA |
| Spherical equivalent, D | 0 (−0.13 to 0.25) | 0.50 (0.25-0.75) | F1,514 = 50.2 | <.001 |
| Axial length, mm | 23.52 (23.10-23.88) | 23.30 (22.81-23.79) | F1,512 = 7.2 | .007 |
| Central corneal radius, mm | 7.72 (7.55-7.85) | 7.74 (7.57-7.92) | F1,512 = 2.0 | .16 |
| Lens thickness, mm | 3.46 (3.33-3.58) | 3.51 (3.38-3.64) | F1,474 = 5.0 | .03 |
Abbreviations: D, diopter; NA, not applicable.
a
Group difference analyzed using linear mixed-effect models to account for the within-person correlation between 2 eyes and adjustment for sex and race.