Table 2. General Distribution of Ocular Biometric Parameters.
| Classification | Mean | SD | Median | Range | Kurtosis | Skewness | K-S | P value* |
|---|---|---|---|---|---|---|---|---|
| AL (mm) | <0.001 | |||||||
| Total (1603) | 21.88 | 0.65 | 21.88 | 19.48 to 24.17 | 0.066 | 0.020 | 0.12 | |
| Boy (854) | 22.14 | 0.59 | 22.13 | 20.38 to 24.17 | 0.152 | 0.074 | <0.05 | |
| Girl (749) | 21.58 | 0.58 | 21.58 | 19.48 to 23.23 | 0.123 | 0.002 | 0.20 | |
| CR1 (mm) | <0.001 | |||||||
| Total (1479) | 7.90 | 0.26 | 7.88 | 7.18 to 8.98 | 0.068 | 0.235 | <0.05 | |
| Boy (777) | 7.98 | 0.25 | 7.97 | 7.34 to 8.98 | 0.154 | 0.235 | 0.16 | |
| Girl (702) | 7.81 | 0.23 | 7.81 | 7.18 to 8.63 | −0.017 | 0.266 | 0.20 | |
| CR2 (mm) | <0.001 | |||||||
| Total (1479) | 7.66 | 0.27 | 7.66 | 6.83 to 8.79 | 0.043 | 0.080 | 0.11 | |
| Boy (777) | 7.74 | 0.26 | 7.74 | 6.87 to 8.79 | 0.120 | 0.040 | 0.20 | |
| Girl (702) | 7.57 | 0.25 | 7.57 | 6.83 to 8.41 | 0.085 | 0.083 | 0.20 | |
| AL/CR ratio | <0.001 | |||||||
| Total (1477) | 2.81 | 0.06 | 2.81 | 2.56 to 3.05 | 0.855 | −0.217 | <0.001 | |
| Boy (776) | 2.82 | 0.06 | 2.82 | 2.56 to 3.01 | 0.862 | 0.083 | <0.05 | |
| Girl (701) | 2.81 | 0.06 | 2.81 | 2.58 to 3.05 | 0.882 | −0.266 | <0.05 |
AL, axial length; CR1, greatest corneal radius of curvature; CR2, least corneal radius of curvature; AL/CR ratio, axial length/mean corneal radius of curvature ratio.
K-S, Kolmogorov-Smirnov test for normality.
*Comparison between sex groups.