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More hypoglycemia not associated with increasing estimated adiposity in youth with type 1 diabetes.

Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA. angcri@live.unc.edu. Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA. School of Nursing, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA. Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA. Translational Research Institute, AdventHealth Orlando, Orlando, FL, USA. Department of Psychology, University of Windsor, Windsor, ON, Canada. Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA. Stanford Diabetes Research Center and Health Research and Policy (Epidemiology), Stanford, CA, USA. Cincinnati Children's Hospital Medical Center, University of Cincinnati Medical School, Cincinnati, OH, USA. School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.

Pediatric research. 2023;(3):708-714
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Abstract

BACKGROUND Despite the widespread clinical perception that hypoglycemia may drive weight gain in youth with type 1 diabetes (T1D), there is an absence of published evidence supporting this hypothesis. METHODS We estimated the body fat percentage (eBFP) of 211 youth (HbA1c 8.0-13.0%, age 13-16) at baseline, 6, and 18 months of the Flexible Lifestyles Empowering Change trial using validated equations. Group-based trajectory modeling assigned adolescents to sex-specific eBFP groups. Using baseline 7-day blinded continuous glucose monitoring data, "more" vs. "less" percent time spent in hypoglycemia was defined by cut-points using sample median split and clinical guidelines. Adjusted logistic regression estimated the odds of membership in an increasing eBFP group comparing youth with more vs. less baseline hypoglycemia. RESULTS More time spent in clinical hypoglycemia (defined by median split) was associated with 0.29 the odds of increasing eBFP in females (95% CI: 0.12, 0.69; p = 0.005), and 0.33 the odds of stable/increasing eBFP in males (95% CI: 0.14, 0.78; p = 0.01). CONCLUSIONS Hypoglycemia may not be a major driver of weight gain in US youth with T1D and HbA1c ≥8.0. Further studies in different sub-groups are needed to clarify for whom hypoglycemia may drive weight gain and focus future etiological studies and interventions. IMPACT We contribute epidemiological evidence that hypoglycemia may not be a major driver of weight gain in US youth with type 1 diabetes and HbA1c ≥8.0% and highlight the need for studies to prospectively test this hypothesis rooted in clinical perception. Future research should examine the relationship between hypoglycemia and adiposity together with psychosocial, behavioral, and other clinical factors among sub-groups of youth with type 1 diabetes (i.e., who meet glycemic targets or experience a frequency/severity of hypoglycemia above a threshold) to further clarify for whom hypoglycemia may drive weight gain and progress etiological understanding of and interventions for healthy weight maintenance.

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Publication Type : Clinical Trial

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