Table 1.

Comparison of Means of Baseline Corneal Epithelial Thickness for Diabetic and Nondiabetic Groups

Baseline Measurements
t-test for Equality of Means
	Epithelial Thickness		P (-Two-Tailed)	Mean Difference	SD
	Group A	Group B
Central	53.36 µm	52.56 µm	P=0.336	0.80	0.82
Middle	52.75 µm	51.95 µm	P=0.282	0.80	0.74
Peripheral	52.62 µm	51.87 µm	P=0.366	0.74	0.82