@article {Malag{\'o}n-Rojasoemed-2021-107487, author = {Jeadran Nevardo Malag{\'o}n-Rojas and Marcela Mercado-Reyes and Yezith G Toloza-P{\'e}rez and Eliana L Parra Barrera and Marien Palma and Esperanza Mu{\~n}oz and Ronald L{\'o}pez and Julia Almentero and Vivian V Rubio and Edgar Ib{\'a}{\~n}ez and Eliana T{\'e}llez and Lucy G Delgado-Murcia and Claudia P Jimenez and Diego Viasus-P{\'e}rez and Marisol Galindo and Luisa Lagos}, editor = {, and , and Weisner, Magdalena and Puerto, Gloria and Mu{\~n}oz-Galindo, Lyda and Herrera, Mar{\'\i}a Teresa and Reales, Jhonantan and C{\'a}rdenas-Villamil, Edwin and Ort{\'\i}z, Jessica and Ovideo, Ligia and Serrano, Liliana and Botero, Stephany and Bedoya, Juan Felipe and Rodr{\'\i}guez-Perea, Helena and Celis-Cruz, Norma}, title = {Seroprevalence of the SARS-CoV-2 antibody in healthcare workers: a multicentre cross-sectional study in 10 Colombian cities}, elocation-id = {oemed-2021-107487}, year = {2021}, doi = {10.1136/oemed-2021-107487}, publisher = {BMJ Publishing Group Ltd}, abstract = {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.}, issn = {1351-0711}, URL = {https://oem.bmj.com/content/early/2021/12/05/oemed-2021-107487}, eprint = {https://oem.bmj.com/content/early/2021/12/05/oemed-2021-107487.full.pdf}, journal = {Occupational and Environmental Medicine} }