The primary outcome was the mean decrease in A1C levels over the period of the study. [...] The results from blood glucose monitors were compared with reference laboratory glucose analyses to evaluate the accuracy of the monitors across all studies. [...] In two studies, the monitors satisfied the ISO 15197 criteria,9,12 and Parke’s error grid criteria in another study,15 but failed to meet the ISO criteria in another study.14 Appendix 5 presents the diagnostic performance results of the evaluated blood glucose monitors. [...] Summary of critical appraisal Appendix 6 summarizes the critical appraisal of the included studies The included studies were limited by the open-label nature of their design which could introduce potential bias in the evaluation and interpretation of the results. [...] Another common source of limitation was the lack of information necessary to judge the satisfaction of the CLSI recommendations6 on the conduct of the blood glucose monitors evaluation.8,12,14 Environmental scan The description and characteristics of the blood glucose monitors and test strips available in Canada are presented in Appendix 7. Limitations This review was based on information availabl