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Effect of Diabetes Health Coaching on Glycemic Control and Quality of Life in Adults Living With Type 2 Diabetes: A
Diana Sherifali1, Anka Brozic2, Pieter Agema3
1School of Nursing, McMaster University, Hamilton, Ontario, Canada; Diabetes Care and Research Program, Hamilton Health Sciences, Hamilton, Ontario, Canada; McMaster Evidence Review and Synthesis Team, McMaster University, Hamilton, Ontario, Canada.
Objectives:
Health coaching for type 2 diabetes (T2DM) represents a promising addition toward efforts to improve clinical health outcomes and quality of life. The purpose of this study was to evaluate the effect of a 12-month telephone diabetes health coaching (DHC) intervention on glycemic control in persons living with T2DM.
Methods:
In this community-based, randomized, controlled trial, adults with T2DM, glycated hemoglobin (A1C) ≥7.5% and telephone access were assigned to either usual diabetes education (DE) or DHC and access to DE. The primary outcome was change in A1C after 1 year, and secondary outcomes included score on the 19-item Audit of Diabetes-Dependent Quality of Life (ADDQoL-19) instrument and self-care behaviours. Safety was assessed in all participants (NCT02128815 at www.clinicaltrials.gov).
Results:
Three hundred sixty-five participants (50% females; mean age, 57 years; mean A1C, 8.98%) were randomized to control (DE, n=177) or intervention (DHC, n=188) groups. The A1C level decreased by an absolute amount of 1.8% and 1.3% in the intervention and control groups, respectively. DHC plus DE reduced A1C by 0.49% more than DE alone (95% confidence interval, -0.80 to -0.18; p<0.01) and improved ADDQoL-19 scores, with between-group differences for the average weighted score of 0.28 (95% confidence interval, 0.04 to 0.52; p=0.02). There were no differences between groups for proportion of participants having an emergency department visit or hospitalization.
Conclusions:
Providing frequent telephone-based DHC and access to DE to adults living with T2DM for 1 year supports improvements in glycemic control and quality of life.
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