Table 3 The clinical, demographic, and behavioral data according to AK classification.
Parameters | AK1 (N = 124) | AK2 (N = 137) | AK3 (N = 109) | AK4 (N = 154) | F/χ2 | P# | r | P* |
|---|---|---|---|---|---|---|---|---|
Clinical data | ||||||||
TCT (µm) | 482.92 ± 33.92 (419, 592) | 464.83 ± 33.92 (395, 568) | 450.68 ± 40.16 (369, 563) | 402.03 ± 55.30 (237, 534) | 65.442 | < 0.001 | − 0.52 | < 0.001 |
Km (D) | 44.93 ± 1.62 (40.9, 47.9) | 47.86 ± 2.83 (39.8, 52.7) | 50.37 ± 3.28 (43.0, 54.9) | 58.83 ± 6.12 (45.1, 77.0) | 248.214 | < 0.001 | 0.76 | < 0.001 |
Ks (D) | 46.14 ± 2.05 (41.6, 50.9) | 49.97 ± 3.53 (43.2,58.6) | 52.39 ± 3.74 (43.3, 59.8) | 61.30 ± 6.85 (46.7, 84.2) | 215.330 | < 0.001 | 0.74 | < 0.001 |
Kmax (D) | 50.43 ± 4.69 (43.2, 65.6) | 56.73 ± 6.77 (43.8, 93.9) | 60.65 ± 7.61 (43.8, 78.5) | 73.46 ± 10.13 (48.1, 92.5) | 160.454 | < 0.001 | 0.69 | < 0.001 |
SP-A1 (mmHg/mm) | 84.90 ± 18.45 (38.22, 128.83) | 71.57 ± 19.93 (38.58, 135.18) | 63.68 ± 20.39 (24.15, 123.75) | 48.52 ± 20.78 (12.49, 131.18) | 54.883 | < 0.001 | − 0.55 | < 0.001 |
Demographic data | ||||||||
Enrollment age | 23.02 ± 7.09 (12, 46) | 22.69 ± 6.36 (12, 46) | 22.25 ± 5.18 (13, 40) | 23.48 ± 7.49 (13, 54) | 0.796 | 0.496 | 0.02 | 0.665 |
Sex (M/F) | 86/38 | 94/43 | 75/34 | 116/38 | 2.177 | 0.537 | − 0.05 | 0.254 |
Behavioral data | ||||||||
Eye rubbing (no/yes) | 47/77 | 47/90 | 38/71 | 47/106 | 1.601 | 0.659 | 0.05 | 0.238 |
Glasses (no/yes) | 38/86 | 43/94 | 21/88 | 58/96 | 13.389 | 0.004 | − 0.04 | 0.413 |
RGP lenses (no/yes) | 80/44 | 68/69 | 41/68 | 77/77 | 12.939 | 0.005 | 0.11 | 0.010 |
CXL surgery (no/yes) | 84/40 | 59/78 | 42/67 | 101/53 | 27.927 | < 0.001 | − 0.01 | 0.985 |
Keratoplasty (no/yes) | 124/0 | 137/0 | 109/0 | 129/25 | 16.224 | 0.001 | 0.28 | < 0.001 |
