Table 1. Patient demographics of three groups.
| Parameters | Normal (n = 46) | KC suspect (n = 37) | KC (n = 43) | P value |
|---|---|---|---|---|
| Age (years) | 29.76 ± 10.26 | 28.81 ± 10.94 | 30.95 ± 9.11 | 0.153* |
| Sex | ||||
| Male:Female (n) | 22:24 | 20:17 | 20:23 | 0.776† |
| Laterality | ||||
| Right | 21 (45.65%) | 20 (54.05%) | 22 (51.16%) | 0.736† |
| Left | 25 (54.35%) | 17 (45.95%) | 21 (48.84%) | |
| Refractive errors (D) | ||||
| Spherical | -3.28 ± 2.41 | -3.21 ± 2.77 | -2.35 ± 2.75 | 0.197* |
| Cylindrical | -0.94 ± 0.85 | -2.09 ± 1.86 | -2.55 ± 1.98 | <0.001* |
KC, keratoconus; D, diopter
* Kruskal-Wallis test. P < 0.05 is statistically significant.
† Chi-square teat. P < 0.05 is statistically significant.