Assessment of the effect of the COVID‐19 lockdown on glycaemic control in people with type 1 diabetes using flash glucose monitoring

Aim To describe the effect of the stringent lockdown measures, introduced in the UK on 23 March 2020 to curtail the transmission of COVID‐19, on glycaemic control in people with type 1 diabetes using flash glucose monitoring. Methods We undertook an observational study of 572 individuals with type 1 diabetes for whom paired flash glucose monitoring data were available between early March and May 2020. The primary outcome was change in flash glucose monitoring variables. We also assessed clinical variables associated with change in glycaemic control. Results Percentage of time in range increased between March and May 2020 [median (interquartile range) 53 (41–64)% vs 56 (45–68)%; P < 0.001], with associated improvements in standard deviation of glucose (P