When pooling does become possible in a future update of this review, we will estimate mean sensitivity and specificity using hierarchical models where tests either report binary results or at commonly reported thresholds. Where data are sparse, we will use methods described by Takwoingi 2017 for obtaining estimates from simplified models. We anticipate that over time sufficient data will accumulate to provide clear estimates of test accuracy for some tests. We will undertake meta‐analysis in STATA version 16.0 (STATA), or SAS (SAS 2015), as detailed in the Cochrane Handbook for Systematic Reviews of Diagnostic Test Accuracy (Chapter 10; Macaskill 2013).