When a Straight Line Is Not the Most Direct Method: an Evaluation of Straight Line Versus True Distance Metrics for Patients in Rural Settings.

Telehealth has been hypothesized as a solution for rural barriers precluding access to healthcare, of which distance remains one of the most significant. Providers, institutions, and policymakers may use distance as a metric to determine whether to keep, or to end, telehealth services. Although commonly used, straight line distance (SLD) may not reflect the true burden of distance (TD) for rural patients.