TABLE 3.

Comparison of the MALDI-TOF MS results with reference PCR-based methods

Virus analysis	Total	No. of samplesa				Concordance (%)	κ
		−Ref/−MS	+Ref/+MS	−Ref/+MS	+Ref/−MS
HSV-1	435	325	98	2	10	97.2	0.92
HSV-2	435	322	104	3	6	97.9	0.94
CMV	129	63	54	2	10	90.7	0.81
VZV	164	79	74	3	8	93.3	0.87
EBV	164	94	58	0	12	92.7	0.85
HHV8	22	10	9	0	3	86.4	0.73
Total	1,349	893	397	10	49	95.6	0.90

^aRef, reference results; MS, MALDI-TOF MS results.