AIMS: This study aimed to compare three approaches of blood glucose monitoring (BGM) frequency attainment and to examine their associations with glycemic control in youth with type 1 diabetes (T1D). METHODS: Cross-sectional data was derived from the baseline assessment in three clinical trials. Clinical and demographic characteristics of youth with T1D was obtained by chart review. BGM frequency was assessed by parent-youth interview, chart review, and meter downloads. To examine the relationship between A1c and frequency of BGM we performed analysis of variance. RESULTS: In youth with T1D (N=385, 50% female, age 13.6±2.5 years, 74% pump users), the 3 methods of assessing BGM frequency were significantly correlated. Frequency by self-report (6.4±2.3 times/day) was significantly higher than both meter download (5.6±2.4 times/day, p
