Pamela Murgia
COVID-19 incidence in a cohort of public transport workers
De Matteis, SaraPrimo
;Cocco, Pierluigi
2022-01-01
Abstract
Background: Previous research has shown an excess risk of COVID-19 among several occupations, but data on public transport workers are scarce. To investigate the occupational risk posed by contact with the public, we followed up the incidence of COVID-19 in a cohort of public transport workers. Methods: We identified the incident cases of COVID-19 between 1 September 2020 -6 May 2021 in a cohort of 2,052 employees of a public transport agency in Sardinia, Italy. The diagnosis of COVID-19 was based on a positive molecular test. To calculate the expected events, we applied the age-and gender-specific incidence rates in the regional population at the same time frame to the cor-respondent strata of the study cohort. We estimated the age-and gender-adjusted relative risk (RR) of COVID-19 as the ratio between the observed and the expected events and its 95% confidence interval (95% C.I.) among the total cohort and in two sub-cohorts: bus drivers and the rest of the personnel (administrative staff, train and metro drivers, workers in the mechanical shop, and in the railroad maintenance, and security). Results: Bus drivers run an elevated risk of COVID-19 (RR = 1.4, 95% C.I. 1.07 -1.79). There was no excess risk among the rest of the personnel. Conclusions: Our study suggests an excess risk of COVID-19 among bus drivers even in a relatively low incidence area, which could imply inadequacy of the preventive measures put in place. Additional studies of larger size with detailed information on personal and lifestyle characteristics are warranted.File | Dimensione | Formato | |
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