Table 3 Summary of assessment of risk of bias for accepted studies based on the modified quality assessment of diagnostic accuracy studies-2 QUADAS-2) criteria for diagnostic accuracy studies
References | Consecutive sample | Case–control design avoided | Avoid inappropriate exclusions | Blinded to ref std results | Prespecified threshold | Described ref std | Appropriate ref std | Blinded to index test results | Appropriate time interval | All patient received ref std | All patients received same ref std | All patients included in analysis |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Richardson et al. 2016 | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y |
Lade et al. 2012 | UC | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y |
Steele et al. 2012 | UC | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y |
Russell et al. 2010 | UC | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y |
Russell et al. 2010 (1950) | UC | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y |