Table 1: Age distribution of patients in each group

Group		Mean ± SD (years)
Group I SE = 0 D, n = 50		26.52 ± 4.33
Group II -4 D < SE < -8 D, n = 25		24.60 ± 3.57
Group III -8 D < SE < -12 D, n = 25		24.64 ± 3.98
Total		25.57 ± 4.13

p = 0.0705