Table 2 Baseline characteristics of selected studies
Study | Risk of bias | Applicability concerns | |||||
|---|---|---|---|---|---|---|---|
Patient selection | Index test | Reference standard | Flow and timing | Patient selection | Index test | Reference standard | |
Daggupati, H.; 2020 [7] | Low | Low | Low | Low | Low | Low | Low |
Martínez-García, A.;2020 [8] | Unclear | Low | Low | Low | Low | Low | Low |
Fulkerson, J.S.;2019 [9] | High | Low | Low | Low | Low | Low | Low |
Koundal, V.;2019 [11] | Unclear | Low | Low | Low | Low | Low | Low |
Wang, L.;2019 [12] | Unclear | Low | Low | Low | Low | Low | Low |
Xu, L.;2019 [10] | High | Low | Low | Low | Low | Low | High |
Yadav, N.K.;2019 [13] | Unclear | Low | Low | Low | Low | Low | Low |
Abraham, S.; 2018 [14] | Unclear | Low | Unclear | Low | Low | Low | Low |
Chan, S.M.M.; 2018 [15] | Unclear | Low | Low | Low | Low | Low | Low |
Falcetta, S.; 2018 [16] | Unclear | Low | Low | Low | Low | Low | Low |
Petrișor, C.; 2018 [17] | Unclear | Low | Unclear | Low | Low | Low | Unclear |
Rana, S.; 2018 [18] | Unclear | Low | Low | Low | Low | Low | Low |
Yilmaz, C.; 2018 [19] | Low | Low | Low | Low | Low | Low | Low |
Parameswari, A.; 2017 [20] | Unclear | Low | Unclear | Low | Low | Low | Low |
Yao, W.; 2017 [21] | Unclear | Low | Low | Low | Low | Low | Low |
Yao, W.; 2017 [22] | Unclear | Low | Low | Low | Low | Low | Low |
Andruszkiewicz, P.; 2016 [23] | Low | Low | Low | High | Low | Low | Low |
Pinto, J.; 2016 [24] | Unclear | Unclear | Low | Low | Low | Low | Low |
Reddy, P.B.; 2016 [25] | Low | Low | Low | Low | Low | Low | Low |
Hui, C.M.; 2014 [26] | Low | Low | Low | Low | Low | Low | Low |
Wu, J.; 2014 [27] | Unclear | Low | Unclear | Low | Low | Low | Low |
Gupta, D.; 2013 [28] | Unclear | Low | Unclear | Low | Low | Low | Low |
Adhikari, S.; 2011 [5] | Low | Low | Low | Low | Low | Low | Low |
Wojtczak, J.A.; 2011 [29] | High | Low | Unclear | Low | Low | Low | Low |
Komatsu, R.; 2007 [30] | Unclear | Low | Low | Low | Low | Low | Low |
Ezri, T.; 2003 [31] | High | Low | Unclear | Low | Low | Low | Low |