Sex Differences in Predictors of Completion of a 6-Month Adapted Cardiac Rehabilitation Program for People With Type 2 Diabetes and No Known Cardiac Disease

Our aim in this study was to determine sex differences and predictors of noncompletion of a comprehensive adapted cardiac rehabilitation program (CRP) for people with type 2 diabetes (no known cardiac disease).Reasons for noncompletion of a 6-month adapted diabetes exercise-based CRP were ascertained by interview between 2006 and 2017. Regression analyses were conducted to determine demographic, cardiopulmonary, medical and psychosocial predictors of noncompletion in all participants and in females and males separately.Among all participants (460 females and 375 males), predictors of dropout included higher depression score, being unemployed, higher glycated hemoglobin (A1C), younger age and fewer comorbidities. There was no difference in completion rate between females and males in bivariate (28% vs 28.3%, p=0.9) or multivariate (odds ratio=1.089, 95% confidence interval 0.79 to 1.5, p=0.6) analyses, but predictors of dropout varied. In females, these predictors included being married/partnered, living with obesity and having a higher depression score, A1C and triglycerides level, independent of age. For males, only higher depression score and younger age predicted dropout. There was no difference in medical dropouts between females and males (37.2% vs 34% of all dropouts, p=0.6) or in reasons for dropout (p0.05 for all) or attendance to prescheduled sessions in completers (69.2±16.8% vs 70.4±18.8%, p=0.5) or dropouts (24.7±15.7% vs 25.2±16.1%, p=0.8), respectively.There was no sex difference in noncompletion, attendance or reasons for dropout from a diabetes CRP. However, being married/partnered, living with obesity and having higher A1C and triglycerides were unique predictors of dropout for females and younger age for males. Being unemployed, glycemic control and depressive symptoms are targets for promoting completion in all participants that can be addressed by multidisciplinary CRP teams.