Supplementary Figure 1. Inclusion and exclusion criteria for adults (>18 years) with a first onychomycosis diagnosis identified in the Atropos Eos dataset (2020–present).

After excluding individuals with both telehealth and in-person visits or <90 days of pre-index history, 3,905 encounters (in-person = 2,808; telehealth = 1,097) were included at index. Following minimal exclusions for insufficient follow-up, 1,096 telehealth visits were propensity-score matched 1:1 to 1,096 in-person visits to create the final analytic sample.