Table 3.

Comparison of identification results of 381 isolates of Aspergillus to species level by the routine morphological identification and those by the Bruker Biotyper MALDI-TOF MS system with different score values.

Aspergillus species	No. of isolates	No. of isolates with indicated identification result/no. of isolates (%) obtained from conventional morphological methods and the Bruker Biotyper MALDI-TOF MS system with indicated ranges of score values
		Identification to species level by conventional morphological methods (n = 367)		No. of isolates with indicated score values obtained by the Bruker Biotyper MALDI-TOF MS system
		Correct identification	Incorrect identification	≥2.000 (n = 115)		≥1.700 (n = 303)
				Correct identification	Incorrect identification	Correct identification	Incorrect identification
ASPERGILLUS SPECIES COMMONLY ENCOUNTERED (n ≥ 10)
A. fumigatus	107	105/105 (100)	0	18 /18 (100)	0	98/98 (100)	0
A. flavus	93	91/91 (100)	0	27/28 (96.4)	1/28 (3.6)	78/80 (97.5)	2/80 (2.5)
A. niger	75	74/75 (98.7)	1/75 (1.3)	40/40 (100)	0	62/62 (100)	0
A. terreus	43	42/42 (100)	0	12/12 (100)	0	28/28 (100)	0
A. versicolor	11	2/11 (18.2)	9/11 (81.8)	7/7 (100)	0	9/9 (100)	0
A. sydowii	11	6/6 (100)	0	0	1/1 (100)	0	6/6 (100)
A. nidulans	10	9/10 (90.0)	1/10 (10.0)	6/6 (100)	0	9/9 (100)	0
Subtotal	350	329/340 (96.8)	11/340 (3.2)	110/112 (98.2)	2/112 (1.8)	284/292 (97.3)	8/292 (2.7)
ASPERGILLUS SPECIES RARELY ENCOUNTERED (n < 10)
A. tubingensis	7	0	7/7 (100)	0	1/1 (100)	0	5/5 (100)
A. japonicus	5	0	5/5 (100)	0	0	0	0
A. nomius	4	0	4/4 (100)	0	0	1/1 (100)	0
A. tamarri	3	0	2/2 (100)	0	0	1/1 (100)	0
A. aculeatus	2	0	2/2 (100)	0	0	0	0
A. ustus	2	0	0	1/1 (100)	0	1/1 (100)	0
Others	8	0	7/7 (100)	1/1 (100)	0	1/3 (33.3)	2/3 (66.7)
Subtotal	31	0	27/27 (100)	2/3 (66.7)	1/3 (33.3)	4/11 (36.4)	7/11 (63.6)
Total (%)	381	329/367 (89.6)	38/367 (10.4)	112 /115 (97.4)	3/115 (2.6)	288/303 (95.0)	15/303 (5.0)