. 2014 May 6;159(1-4):172–181. doi: 10.1093/rpd/ncu129

Table 1.

Linear regression analysis of the dose response of the RIs amplitude and (SEIP) ROC analysis of the dose-response data.

	Slope^a	Intercept^a	AUC^b
Spectral fitting after background is subtracted
Estimated RIS	1.59±0.12	1.84±0.38	0.90±6
Actual RIS	1.42±0.10	3.20±0.30	0.92±5
Spectral fitting with background included followed by post-fitting background correction for RIS
Estimated RIS*	1.48±0.15	−0.15±0.48	0.83±9
Actual RIS*	1.61±0.16	1.11±0.51	0.87±7

^a± 1 SE.

^bAUC calculated from the ROC analysis of the estimated and actual RIS values derived from the spectral fitting of clipped nail spectra, without (RIS) or with (RIS*) background included during the spectral fitting. The error values represent 1 SD.