Table 1. Discrimination of viral and bacterial infections.

Dataset	Factors	Model	TP	FN	FP	TN	Recall	Precision	F1
GSE42026	NG_V; NG_B	K-means	33	7	8	11	0.80	0.83	0.81
GSE60244	NG_V; NG_B	K-means	55	1	16	21	0.77	0.98	0.87
GSE72809	NG_V; NG_B	K-means	77	15	18	34	0.81	0.84	0.82
GSE72810	NG_V; NG_B	K-means	27	1	5	18	0.84	0.96	0.90

K-means model was used. TP, true positives; FN, false negatives; FP, false positives; TN, true negatives; F1, the harmonic ratio of Recall rate and Precision rate. NG_V, number of VRGs with FC>2.0 compared to healthy controls; NG_B, number of BRGs with FC>2.0 compared to healthy controls.