TY - JOUR T1 - Seroprevalence of the SARS-CoV-2 antibody in healthcare workers: a multicentre cross-sectional study in 10 Colombian cities JF - Occupational and Environmental Medicine JO - Occup Environ Med DO - 10.1136/oemed-2021-107487 SP - oemed-2021-107487 AU - Jeadran Nevardo Malagón-Rojas AU - Marcela Mercado-Reyes AU - Yezith G Toloza-Pérez AU - Eliana L Parra Barrera AU - Marien Palma AU - Esperanza Muñoz AU - Ronald López AU - Julia Almentero AU - Vivian V Rubio AU - Edgar Ibáñez AU - Eliana Téllez AU - Lucy G Delgado-Murcia AU - Claudia P Jimenez AU - Diego Viasus-Pérez AU - Marisol Galindo AU - Luisa Lagos A2 - , Y1 - 2021/11/05 UR - http://oem.bmj.com/content/early/2021/11/05/oemed-2021-107487.abstract N2 - Background Healthcare workers are at increased risk of infection due to occupational exposure to SARS-CoV-2-infected patients. The objective of this study was to determine the seroprevalence of SARS-CoV-2 in healthcare workers in Colombia.Methods This study is a cross-sectional study focused on estimating the seroprevalence of SARS-CoV-2 antibodies in healthcare workers from 65 hospitals in 10 cities in Colombia during the second semester of 2020. The seroprevalence was determined using an automated immunoassay (Abbott SARS-CoV-2 CLIA IgG). The study included a survey to establish the sociodemographic variables and the risk of infection. A multivariate model was used to evaluate the association between the results of seroprevalence and risk factors.Results The global seroprevalence of antibodies against SARS-CoV-2 was 35% (95% Bayesian CI 33% to 37%). All the personnel reported the use of protective equipment. General services personnel and nurses presented the highest ratios of seroprevalence among the healthcare workers. Low socioeconomic strata have shown a strong association with seropositivity.Conclusion This study estimates the prevalence of SARS-CoV-2 infection among healthcare workers. Even though all the personnel reported the use of protective equipment, the seroprevalence in the general services personnel and nurses was high. Also, a significant difference by cities was observed.Data are available upon reasonable request. Data may be obtained from a third party and are not publicly available. ER -