Automatic Quantification Software for Geographic Atrophy Associated with Age-Related Macular Degeneration: A Validation Study

Table 2

Agreement between manual vs. automatic area measurements.

Sample	Group	CCC	95% CI	Degree of agreement
Whole		0.95	0.93 0.96	Substantial
Lesion type	1	0.92	0.88 0.96	Moderate
	2	0.97	0.96 0.98	Substantial
Number of lesions	1	0.99	0.99 0.99	Almost perfect
	2	0.89	0.83 0.94	Poor

CCC: concordance correlation coefficient. CI: confidence interval. Lesion type- 1: regular; 2: irregular. Number of lesions- 1: single; 2: multiple.