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. 2020 Aug 25;10:14176. doi: 10.1038/s41598-020-71142-3

Table 1.

Demographics (N = 124).

Variable Group A
Ortho-K
Group B
0.01%A
Group C
0.05%A
Total P-value Post-hoc
N 52 36 36 124
Age Group 0.235
 < 12 y/o 22(42.3%) 20(55.6%) 13(36.1%) 55(44.4%)
≧12 y/o 30(57.7%) 16(44.4%) 23(63.9%) 69(55.6%)
Gender 0.552
Male 21(40.4%) 18(50.0%) 18(50.0%) 57(46.0%)
Female 31(59.6%) 18(50.0%) 18(50.0%) 67(54.0%)
Inter-eye SE difference (D)& 1.27(1.00, 3.38) 1.25(1.00, 2.50) 1.25(1.00, 2.75) 1.25(1.00, 3.38) 0.983
Inter-eye AL difference (mm) 0.53 ± 0.29 0.41 ± 0.25 0.42 ± 0.20 0.46 ± 0.26 0.069
More myopic eye
Initial AL (mm) 25.33 ± 1.19 24.71 ± 1.29 24.35 ± 0.82 24.82 ± 1.13  < 0.001* A > B, C
Initial SE (D) − 5.27 ± 2.31 − 3.36 ± 1.73 − 3.12 ± 1.35 − 4.09 ± 2.14  < 0.001* A < B, C
Initial K1 (D) 43.00 ± 1.31 42.93 ± 1.31 42.83 ± 1.29 42.93 ± 1.30 0.832
Initial K2 (D) 44.33 ± 1.45 44.02 ± 1.54 43.78 ± 1.40 44.08 ± 1.47 0.219
Less myopic eye
Initial AL (mm) 24.84 ± 1.18 24.00 ± 0.64 23.87 ± 0.65 24.38 ± 1.11  < 0.001* A > B, C
Initial SE (D) − 3.77 ± 2.19 − 1.88 ± 1.66 − 1.66 ± 1.38 − 2.61 ± 2.07  < 0.001* A < B, C
Initial K1 (D) 42.92 ± 1.34 42.92 ± 1.47 42.80 ± 1.24 42.89 ± 1.34 0.901
Initial K2 (D) 44.36 ± 1.44 44.08 ± 1.47 43.85 ± 1.48 44.13 ± 1.47 0.266
Follow-up Time (years) 1.47 ± 0.61 1.51 ± 0.57 1.29 ± 0.59 1.43 ± 0.59 0.232

Data are presented as n(%) or mean ± standard deviation or &median (minimum, maximum).

*p-value < 0.05 was considered statistically significant after test.

A = atropine, AL = axial length, D = dioptre, K = keratometry, K1 = the refraction measured on the flattest curve of the cornea, K2 = the refraction measured on the deepest curve of the cornea, mm = millimetre, Ortho-K = orthokeratology, SE = spherical equivalent.