1. The document summarizes the planning of a systematic review to evaluate the diagnostic accuracy of tests. It outlines the key components of planning a diagnostic test accuracy review, including defining the population, index test, reference standard, and accuracy measures to be evaluated.
2. It describes the two main types of diagnostic reviews: single-gate and twin-gate designs. Key elements that need to be addressed are the inclusion criteria, assessment of risk of bias, analysis of heterogeneity.
3. The expected use of the index test and threshold or cut-off values used to define positive or negative results are also important planning considerations.