Table 2 Baseline data of subjects who completed the one-year follow-up examination in the ortho-k lens and control groups
From: Effects of orthokeratology on the progression of low to moderate myopia in Chinese children
Ortho-k | Control | P-value | |
|---|---|---|---|
Total | N = 141 | N = 130 | |
Age(y) | 9.43 ± 1.10 | 9.37 ± 1.00 | P = 0.643 |
M/F ratio | 62/79 | 66/64 | P = 0.362 |
SER(D) | −2.74 ± 1.15 | −2.88 ± 1.39 | P = 0.380 |
Axial length(mm) | 24.71 ± 0.72 | 24.82 ± 0.77 | P = 0.234 |