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Table 5 Confidence level of misclassified HHT patients after analysis of both spectral regions

From: HHT diagnosis by Mid-infrared spectroscopy and artificial neural network analysis

Non-HHT samples classified into the HHT group (false positive)

HHT patient samples classified into the control group (false negative)

3_Av (65%)

287 (78%)

15_Av (73%)

297 (80%)

84_Av (99%)

300 (84%)

95_Av (74%)

324 (57%)

162 (99%)

325 (70%)

214 (78%)

330 (83,5%)

214a (69%)

333 (100%)

306 (82,5%)

348 (99%)

334 (88%)

350 (93%)

358 (100%)

356 (97%)

  1. Confidence levels were calculated by the Pattern Expert Airspect program after ANN and cross validation analysis with all HHT samples and all control samples for spectral regions 3.150 - 2.750 cm-1 and 1.850 - 750 cm-1.