Table 2. Diagnostic performance, design, and quality of included studies.

Author (Ref)	Cases	Controls	TP	FP	FN	TN	Design	Blinded?	QUADAS
Bassarova AV [17]	32	250	32	128	0	122	NA	NA	8
Saad RS [18]	20	20	17	0	3	20	R	Yes	8
Bhalla R [19]	10	10	10	0	0	10	R	NA	9
Hyun TS [20]	11	21	9	0	2	21	R	Yes	10
Ordóñez NG [21]	40	123	29	8	11	115	NA	NA	11
Chu AY [22]	53	125	51	27	2	98	R	NA	12
Müller AM [23]	36	76	22	27	14	49	NA	NA	10
Ordóñez NG [24]	40	45	37	6	3	39	NA	NA	11
Comin CE [25]	15	40	14	8	1	32	R	NA	9
Mimura T [26]	66	66	56	3	10	63	R	NA	11
Padgett DM [27]	44	101	38	4	6	97	R	NA	12
Amatya VJ [28]	80	80	74	13	6	67	R	NA	12
Deniz H [29]	37	36	19	0	18	36	R	NA	11
Takeshima Y [30]	45	27	39	7	6	20	R	NA	10
Hu YC [31]	36	31	25	2	11	29	R	NA	10
Kao SC [32]	80	21	80	0	0	21	R	NA	9
Comin CE [33]	75	172	73	25	2	147	R	NA	10
Guo Z [8]	43	35	38	24	5	11	R	NA	12
Kawai T [34]	22	11	17	3	5	8	P	NA	11
Carbone M [5]	10	45	8	10	2	35	R	NA	10
Amatya VJ [35]	31	29	22	9	9	20	R	Yes	12
Kushitani K [36]	36	38	35	23	1	15	R	NA	11

NA: Not available; P: Prospective; R: Retrospective; FN: False negative; FP: False positive; TN: True negative;

TP: True positive; QUADAS: Quality assessment for diagnostic accuracy studies.