investigate complications of covid-19 vaccination among health care workers in chaharmahal and bakhtiari, iran: a cross-sectional study

Background: the covid-19 pandemic has posed significant challenges to health systems and the global economy. as a result, effective vaccines against coronavirus disease 2019 (covid-19) are necessary to reduce the enormous burden of sars-cov-2 deaths. however, vaccination may cause side effects (se) that threaten individuals’ lives. objectives: this study aimed to evaluate the vaccination status and factors associated with covid-19 vaccine complications among healthcare workers (hcws) in chaharmahal and bakhtiari province, iran. methods: this cross-sectional study was conducted in 2022 on 739 hcws in chaharmahal and bakhtiari province. healthcare workers were selected by cluster sampling, and their information was collected using a demographic questionnaire and disease history. the data were analyzed using binary logistic regression analysis. results: most hcws (712, 96.3%) were vaccinated. about half of them reported complications after vaccination. more complications were reported in those vaccinated with the oxford/astrazeneca vaccine. male gender, contact with suspected or confirmed covid-19 patients, covid-19 history, and type of vaccine were risk factors significantly associated with covid-19 vaccine complications (p < 0.05). conclusions: this study aimed to investigate vaccination status and factors associated with covid-19 vaccine complications among hcws. the oxford/astrazeneca vaccine had the most se, while the bivi-cove-iran vaccine had the fewest se after the first dose. additionally, men experienced fewer vaccine se than women. healthcare workers have a higher likelihood of facing complications from the covid-19 vaccine if they have been exposed to infected individuals and have previously contracted the virus.