Table 2.

Assessment of reporting quality by QUADAS-2 scoring system

Study	Risk of bias				Applicability concerns
	Patient selection	Index test	Reference standard	Flow and timing	Patient selection	Index test	Reference standard
Kim et al., 201323	Low risk	Low risk	Low risk	High risk	Low risk	Low risk	Low risk
Hur et al., 200919	Low risk	Low risk	High risk	Low risk	Low risk	Low risk	High risk
Inoue et al., 201221	Low risk	Low risk	High risk	High risk	High risk	High risk	High risk
Yamagami et al., 201324	Low risk	Low risk	High risk	Low risk	Low risk	Low risk	High risk
Maxwell et al., 201425	Low risk	Low risk	Low risk	High risk	Low risk	Low risk	Low risk
Yun et al., 201827	Low risk	Low risk	High risk	Low risk	Low risk	Low risk	High risk
Kiranantawat et al., 201928	Low risk	Low risk	Low risk	Low risk	Low risk	High risk	Low risk
Munir et al., 201726	High risk	Low risk	High risk	Low risk	Low risk	Low risk	High risk
Kim et al., 200818	Low risk	Low risk	High risk	High risk	Low risk	High risk	High risk
Lu et al., 201222	Low risk	Unclear risk	High risk	Low risk	High risk	Unclear risk	High risk
Yamauchi et al., 201120	Low risk	Unclear risk	Low risk	High risk	Low risk	Unclear risk	Low risk
Halpenny et al., 202029	Low risk	Unclear risk	Low risk	Low risk	Low risk	Unclear risk	Low risk

QUADAS, Quality Assessment of Diagnostic Accuracy Studies.