Comparison between in-person, telehealth, and combination visits among veterans treated in a pharmacist-led diabetes management clinic

Background The Veterans Affairs San Diego Healthcare System converted its pharmacist-run Diabetes Intense Medical Management (DIMM) Clinic to telehealth during the COVID-19 pandemic. Previous studies suggested that in-person DIMM visits improved glycemic control, medication adherence, and patient satisfaction. To explore if these benefits apply to telehealth, we compared glycemic control in veterans with post-COVID-19 telehealth DIMM visits and pre-pandemic in-person DIMM visits. Objective The primary study objective was to evaluate the mean hemoglobin (A1c) change from baseline in cohorts who received telehealth visits, traditional visits, or a combination of both after 12 months of intervention. Secondary objectives included evaluation of all-cause mortality and the average time to mortality (days). Methods A retrospective multi-arm historical cohort control study was conducted to compare 12-month glycemic control among veterans with type 2 diabetes who initiated DIMM care via audio-only telehealth, in-person, or combination between August 2018 and November 2021. Primary endpoint was the 12-month change in A1c from baseline; secondary measures included all-cause mortality and the average time to mortality (days). Results A total of 44 veterans were included for analysis. At 12 months, the average decrease in A1c from baseline were -0.90% (95% CI: -2.82, 1.01), -1.73% (95% CI: -3.33, -0.14), and -1.42% (95% CI: -2.67, -0.18) for the In-Person, Telehealth, and Combination groups, respectively. No differences in quarterly HbA1c rate of change were reported across the groups. All-cause mortality was highest in the In-person group (15.4%) compared to the Telehealth (4.6%) and the Combination (0.0%) groups; however, these differences were not statistically significant. Lastly, there were no significant differences in average time to death between the groups. Conclusion Telehealth may be an alternative method of access to pharmacist-led diabetes care that is slowly making its way into our healthcare systems as a permanent fixture.