Histological Patterns of Epithelial Alterations in Keratoconus

Table 1

Descriptive statistics of the sample (epithelial thickness).

		N	Mean	Standard deviation	Confidence interval 95%		Minimum	Maximum
					Inferior limit	Superior limit
Central epithelial thickness	1	15	55.20	14.944	46.92	63.48	39	92
	2	35	27.89	8.362	25.01	30.76	10	50
	3	40	38.78	10.895	35.29	42.26	17	65
	Total	90	37.28	14.272	34.29	40.27	10	92
Peripheral epithelial thickness	1	15	34.27	9.573	28.97	39.57	20	50
	2	35	50.00	7.658	47.37	52.63	34	67
	3	40	42.13	9.635	39.04	45.21	22	60
	Total	90	43.88	10.449	41.69	46.07	20	67