Impact of isCGM on quality of life in overweight individuals with impaired glucose tolerance or mild diabetes: secondary analysis of a pilot randomized controlled study
摘要
The impact of intermittently scanned continuous glucose monitoring (isCGM) on quality of life (QoL) for overweight individuals with impaired glucose tolerance (IGT) or mild type 2 diabetes (HbA1c ≤ 7.0%) remains unclear.
MethodsIn this secondary analysis of our pilot weight-loss RCT, 40 overweight individuals (BMI, ≥ 25 kg/m2) were randomized to isCGM (isCGM plus diet-and-exercise therapy) or control (diet-and-exercise therapy alone) groups. QoL was assessed with the SF-36 questionnaire over a 6-month intervention.
ResultsAfter exclusion of participants with missing data or who withdrew consent, 17 individuals in the isCGM group (median [interquartile range] age, 51.0 [47.0–62.5] years; BMI, 35.0 [32.2–39.0] kg/m2) and 16 individuals in the control group (age, 51.0 [41.8–65.0] years; BMI, 29.4 [25.3–35.8] kg/m2) were analyzed. No significant differences in QoL changes over the intervention period were observed between the two groups. Within the isCGM group, the Mental Component Summary (MCS) score improved significantly (from 44.8 to 48.4, P < 0.05), whereas the Role/Social Component Summary score declined significantly (from 52.2 to 44.8, P < 0.05). Scan frequency correlated positively with baseline Vitality, Mental Health, and MCS scores. Changes in time above range and standard deviation for sensor glucose were negatively correlated with changes in the General Health score.
ConclusionisCGM did not improve QoL scores relative to the control group for overweight individuals with IGT or mild diabetes. Within-group analysis suggested that isCGM improved mental QoL but lowered perceived social QoL. Tailored support addressing psychological and social needs may maximise isCGM benefits.