Table 1.
Preoperative descriptive data (subjective refraction).
| Parameter | LASIK + MMC (N = 70) |
LASIK without MMC (N = 70) |
Total (N = 140) | p-value |
|---|---|---|---|---|
| Sphere (D) | W = 2411.5, p = 0.873, r=-0.014a | |||
| Range | 2.00, 4.00 | 2.00, 4.00 | 2.00, 4.00 | |
| Mean (SD) | 2.91 (0.62) | 2.93 (0.46) | 2.92 (0.54) | |
| Median (Q1,Q3) | 3.00 (2.50, 3.25) | 3.00 (2.50, 3.25) | 3.00 (2.50, 3.25) | |
| Cylinder (D) | W = 2634.5, p = 0.417, r=− 0.069a | |||
| Range | − 1.00, 0.00 | − 1.00, -0.25 | − 1.00, 0.00 | |
| Mean (SD) | − 0.51 (0.25) | − 0.54 (0.23) | − 0.53 (0.24) | |
| Median (Q1,Q3) | − 0.50 (-0.75, -0.25) | − 0.50 (-0.75, -0.50) | − 0.50 (-0.75, -0.25) | |
| Spherical Equivalent (D) | W = 2390, p = 0.804, r=− 0.021a | |||
| Range | 2.12, 4.25 | 2.38, 4.38 | 2.12, 4.38 | |
| Mean (SD) | 3.16 (0.61) | 3.20 (0.47) | 3.18 (0.54) | |
| Median (Q1,Q3) | 3.19 (2.78, 3.62) | 3.25 (2.78, 3.50) | 3.25 (2.75, 3.62) | |
LASIK: Laser-Assisted in Situ Keratomileusis, MMC: Mitomycin C, D: diopter, SD: standard deviation, Q1: first quartile, Q3: third quartile.
aMann-Whitney test.
bIndependent t-test.