Table 5 Demographic and biometric characteristics in the two groups after adjustment for age and sex by propensity score matching.
Parameter | High myopia group (n = 2170) | Non-high myopia group (n = 2170) | P value |
|---|---|---|---|
Age (years, mean ± SD) | 59.8±12.4 | 60.2±12.9 | 0.314* |
Sex, n (%) | |||
Male | 1014 (46.7) | 975 (44.9) | 0.247** |
Female | 1156 (53.3) | 1195 (55.1) | |
AL (mm, median, range) | 28.52 (26.00, 37.34) | 23.53 (22.00, 25.00) | <0.001*** |
Corneal power (D, mean ± SD) | |||
K1 | 43.20±1.60 | 43.74±1.41 | <0.001* |
K2 | 44.40±1.76 | 44.60±1.45 | <0.001* |
K | 43.80±1.63 | 44.17±1.39 | <0.001* |
CD (mm, mean ± SD) | 11.90±0.47 | 11.87±0.45 | 0.024* |
ACD (mm, mean ± SD) | 3.45±0.39 | 3.22±0.43 | <0.001* |
CA (D, median, range) | 1.02 (0.00, 7.48) | 0.72 (0.00, 5.80) | <0.001*** |
Cornea type | |||
Flat (n, %) | 275 (12.7) | 121 (5.6) | <0.001** |
Medium (n, %) | 1701 (78.4) | 1845 (85.0) | <0.001** |
Steep (n, %) | 194 (8.9) | 204 (9.4) | 0.636** |
CA severity | |||
Low (n, %) | 709 (32.7) | 1141 (52.6) | <0.001** |
Moderate (n, %) | 1315 (60.6) | 977 (45.0) | <0.001** |
High (n, %) | 146 (6.7) | 52 (2.4) | <0.001** |
CA type | |||
WTR (n, %) | 894 (41.2) | 926 (42.7) | 0.325** |
ATR (n, %) | 892 (41.1) | 898 (41.4) | 0.853** |
Oblique (n, %) | 384 (17.7) | 346 (15.9) | 0.123** |
