Study design (if review, criteria of inclusion for studies)
Cross-sectional studies and prospective cohort studies. Randomised comparisons of tests in which all participants have been cross-classified with a reference standard will be included. Excluded: case-control studies, case reports, studies where CGMS is performed retrospectively after an abnormal OGTT.
People (both children and adults) with CF in whom cystic fibrosis-related diabetes (CFRD), as outlined by the ADA 2016 criteria, is suspected or who are being routinely screened for CFRD.
Comparison of continuous glucose monitoring systems (CGMS) (index test) against the reference standard (diagnosis of CFRD as outlined by the ADA criteria ) in the diagnosis of cystic fibrosis-related diabetes (CFRD).
Accuracy of continuous glucose monitoring systems (CGMS) in detecting abnormalities of glycaemic control. The clinical reference standard is the diagnosis of CFRD as outlined by the ADA criteria