Table II.

c-statistics for CEP markers

The c-statistic and 95% CI were determined by a logistic regression model fitted with log-transformed CEP adduct concentration and autoantibody titer as independent variables and were validated by bootstrap resampling and 10-fold cross-validation.

	n	Total		Bootstrap validation		Cross-validation
		Estimate	95% CI	Estimate	95% CI	Estimate	95% CI
Control	488
All AMD	916	0.76	0.73, 0.79	0.76	0.73, 0.79	0.76	0.73, 0.78
AMD category 2	177	0.76	0.72, 0.80	0.76	0.72, 0.80	0.75	0.71, 0.79
AMD category 3	130	0.73	0.68, 0.77	0.73	0.69, 0.78	0.72	0.68, 0.77
AMD category 4	609	0.77	0.74, 0.80	0.77	0.74, 0.80	0.77	0.74, 0.80