Histological Patterns of Epithelial Alterations in Keratoconus

Table 2

Descriptive statistics of the sample (total corneal thickness).

		N	Mean	Standard deviation	Confidence interval 95%		Minimum	Maximum
					Inferior limit	Superior limit
Central corneal thickness	1	15	423.47	168.944	329.91	517.02	245	951
	2	35	339.69	96.681	306.47	372.90	136	581
	3	40	330.75	102.651	297.92	363.58	167	610
	Total	90	349.68	117.456	325.08	374.28	136	951
Peripheral corneal thickness	1	15	472.40	125.888	402.69	542.11	257	738
	2	35	494.63	118.345	453.98	535.28	256	698
	3	40	457.23	94.709	426.94	487.51	288	697
	Total	90	474.30	109.855	451.29	497.31	256	738