Introduction:

The Peruvian government established guidelines to prevent the spread of SARS-CoV-2 in the workplace, including the remote work (RW). However, there is no evidence of the efficacy of this measure.

Objective:

To determine the risk between presence in the workplace and the contagion of COVID-19 vs remote work in workers who are building the first underground metro in Lima.

Material and Methods:

The study was a quantitative, observational and retrospective cohort study. A database of secondary sources related to the monitoring of COVID-19 cases was developed.

Results:

Of the 963 workers evaluated, 89.9% (866) did face-to-face work. 39.4% (341) of those who underwent face-to-face work were infected, while 66.0% (64) of those who underwent RW became ill with COVID-19 (p value <0.001). The multivariate model found that those who had undergone face-to-face work had a lower risk of contagion by COVID-19 (aRR: 0.53; 95% CI: 0.40-0.70; value p<0.001), there was also less risk among older (for each additional year the risk decreased 1.3%; p value=0.003); on the contrary, there was a higher risk of contagion among men (aRR: 1.34; 95%CI: 1.07-1.68; p value=0.012) and according to the type of transportation used to get to work (all p values <0.003), adjusted for three variables.

Conclusion:

It was concluded that the population evaluated had a greater contagion of COVID-19 in workers who did remote work. On the other hand, male sex, younger age and means of transportation were risk factors for contracting COVID-19.

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