Table 6.

5-fold cross validation for 4-class classification: normal vs. viral pneumonia vs. bacterial pneumonia vs. COVID-19.

Parameters	Accuracy	Sensitivity	Specificity	Precision	F1-score
Standard deviation – 4 classes	±3.89	±9.50	±2.52	±5.82	±6.69
Overall results – 4 classes (95% CI)	94.79 ± 3.81	90.82 ± 9.31	96.48 ± 2.47	91.35 ± 5.70	90.88 ± 6.56
Standard deviation – COVID-19	±0.26	±1.72	±0.09	±0.61	±0.91
Overall results for COVID-19 (95% CI)	99.70 ± 0.23	98.14 ± 1.51	99.91 ± 0.08	99.42 ± 0.53	98.77 ± 0.80