| Institution: | 1. Department of Nuclear Medicine, University Hospital Zurich, Switzerland;2. University of Zurich, Switzerland;3. Department of Medical Oncology, University Hospital Zurich, Switzerland;4. Division of Infectious Diseases and Children''s Research Centre, University Children''s Hospital Zurich, Switzerland |
| Abstract: | PurposeTo evaluate the temporal evolution of vaccination against COVID-19 in a Swiss oncological cohort.MethodsHistory of complete vaccination (i.e. at least two vaccine doses) against COVID-19 of patients undergoing oncological 18F-FDG PET/CT between February and September 2021 (n = 2613) was taken. Vaccination rate was compared with age-matched national data from the Swiss Federal Office of Public Health. Subgroup differences in temporal evolution of vaccination rate were analyzed by fitting a generalized linear model and determined by significant interaction between, sex, oncological diagnosis, and month of examination.ResultsRate of complete vaccination against COVID-19 steadily increased and reached 81 % in September 2021. The fraction of vaccinated patients in the oncological cohort was higher in the beginning and approached the fraction in the age-matched general Swiss population at the end of the study period. Month of exam (p < 0.001) was the only significant predictor of the vaccination rate.ConclusionVaccination rate against COVID-19 in a Swiss oncological cohort increased steadily from February to September 2021. Compared to the age-matched general population it was higher in the beginning and similar by the end of the study period.Ethics approval: Trial registration: BASEC 2021-00444, Ethikkommission Zürich (Cantonal Ethics Committee Zurich), Switzerland, registered February 24th 2021. |
