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The aim of this study was to investigate the relationships between CGM metrics, such as time in range (TIR), and glycemic control indicators.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>We carried out retrospective CGM and blood tests on 189 outpatients with impaired glucose tolerance (<jats:italic>n<\/jats:italic>\u00a0=\u00a022), type\u00a01 diabetes mellitus (<jats:italic>n<\/jats:italic>\u00a0=\u00a067) or type\u00a02 diabetes mellitus (<jats:italic>n<\/jats:italic>\u00a0=\u00a0100).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>In type\u00a01 diabetes mellitus and type\u00a02 diabetes mellitus patients, HbA1c and GA were negatively correlated with TIR, whereas 1,5\u2010AG was positively correlated with TIR. In type\u00a01 diabetes mellitus patients, a TIR of 70% corresponded to HbA1c, GA and 1,5\u2010AG of 6.9% (95% confidence interval [CI] 6.5\u20137.2%), 20.3% (95% CI 19.0\u201321.7%) and 6.0\u00a0\u00b5g\/mL (95% CI 5.1\u20136.9\u00a0\u00b5g\/mL), respectively. In type\u00a02 diabetes mellitus patients, a TIR of 70% corresponded to HbA1c, GA and 1,5\u2010AG of 7.1% (95% CI 7.0\u20137.3%), 19.3% (95% CI 18.7\u201319.9%) and 10.0\u00a0\u00b5g\/mL (95% CI 9.0\u201311.0\u00a0\u00b5g\/mL), respectively. TIR values corresponding to HbA1c levels of 7.0% were 56.1% (95% CI 52.3\u201359.8%) and 74.2% (95% CI 71.3\u201377.2%) in type\u00a01 diabetes mellitus and type\u00a02 diabetes mellitus patients, respectively.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The results of this study showed that the estimated HbA1c corresponding to a TIR of 70% was approximately 7.0% for both type\u00a01 diabetes mellitus and type\u00a02 diabetes mellitus patients, and that the estimated 1,5\u2010AG calculated from the TIR of 70% might be different between type\u00a01 diabetes mellitus and type\u00a02 diabetes mellitus patients.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jdi.13437","type":"journal-article","created":{"date-parts":[[2020,10,15]],"date-time":"2020-10-15T15:28:10Z","timestamp":1602775690000},"page":"940-949","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["Association of time in range with 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