Statistical Analysis
REGRESSION
All analyses were conducted in 2022 and included intention-to-treat, treatment-received, and per-protocol analyses (J.P.M, S.C.H., D.T., M.K.L.) in Stata/SE, version 17 (StataCorp LLC). Univariable and bivariable comparisons were conducted using Pearson χAs a pragmatic trial, we evaluated the distribution of baseline characteristics between encounters that used the assigned modality (telephone vs telemedicine) to identify differences in the study arms. To account for possible carryover effects of telephone assignment in the subsequent telemedicine study period, we included a cluster-varying binary indicator for switch period in the multivariable logistic regression models. We then used a nested likelihood ratio test to compare models with and without this term to formally test for the presence of effect modification by potential carryover effects. The level at which statistical significance was set was 2-sided 