Table 3

Rate of change in axial length in each subgroup calculated using linear mixed models

SubgroupRate of changeP value*
Subgroup 1 (95% CI) (mm/y)0.064 (0.050, 0.079) < 0.001
Subgroup 2 (95% CI) (mm/y)0.032 (0.022, 0.042) < 0.001
Subgroup 3 (95% CI) (mm/y)0.012 (0.002, 0.025) 0.025
Subgroup 4 (95% CI) (mm/y)0.006 (−0.001, 0.012)0.054

  • Subgroup 1:≥27.5 mm, subgroup 2: 26.0–27.5 mm, subgroup 3: 24.5–26 mm, subgroup 4:<24.5 mm.

  • *Values in boldface (p<0.05) are significant changes over time in linear mixed models.