Figure 2. Cumulative Incidence of SARS-CoV-2 Infection After First Vaccine Dose in Patients Receiving Current Treatment With Chemotherapy-Containing Regimens and Endocrine Therapy.

Cumulative incidence curves of SARS-CoV-2 infection among patients receiving current treatment with (A) a chemotherapy-containing regimen and (B) an endocrine therapy regimen at the time of vaccination. Time zero is the date of the first dose of vaccination or entry as an unvaccinated control. The difference in cumulative incidence is illustrated in the gray bottom graphs. Shaded areas indicate 95% CIs calculated by bootstrapping. Current treatment is defined as systemic therapy received within the 3 months prior to vaccination (if in the vaccinated group) or prior to entry date (if in the unvaccinated group).