Introduction:

Although most individuals recover after acute infection by SARS-CoV-2, others may suffer from persistent symptoms with potential medium and long-term consequences on the performance of activities and participation, with possible implications for their fitness for work.

Objective:

To analyze the persistence of symptoms twelve months after SARS-CoV-2 infection, and the perception of the performance level in activities and participation in life situations, of workers in a company of the industrial sector in the Aveiro Region.

Methodology:

An observational study, developed in an Occupational Health Service of an industrial company in the region of Aveiro, including workers with positive SARS-COV-2 RT-PCR/TRAg test, between October/2020-January/2022. After signaling the infection, the Occupational Health Team applied a questionnaire collecting sociodemographic variables, a list of common symptoms during the acute phase of infection by SARS-COV-2, and the perceived functionality assessed by the Portuguese version of WHODAS 2.0-PT12 (where '12 points' means the most functionality). At twelve months, they filled out another list of persistent symptoms after SARS-CoV-2 infection and again WHODAS 2.0-PT12. Data analysis included descriptive statistics and univariate and multivariate linear regression. The analysis was conducted with the software JASP 0.16.3.

Results:

Eighty-five workers were infected with SARS-CoV-2, with a mean age of 36.1± 9.8years, 77.7% were male, 36.7% had higher education and 17.7% reported at least one chronic condition. At twelve months, thirty workers (35.3%) reported persistent symptoms, with fatigue (27.7%) and arthralgia (14.4%) being the most mentioned. The mean WHODAS 2.0 in the two evaluation moments was 19.2±8.0 vs 15.7±5.0. Significant associations between WHODAS 2.0 items and persistent symptoms of fatigue, headache, cough, myalgia, arthralgia, and previous chronic disease were found.

Conclusions:

Persistent symptoms twelve months after acute SARS-CoV-2 infection have repercussions on workers' self-perception of performance in some activities and participation in life situations. The occupational health team can implement continuous surveillance of the infected worker's health, assess the presence of persistent symptoms of this infection, and implement an individualized rehabilitation program, which minimizes the impact of the persistence of symptoms on their work performance, and in activities and participation in life situations.

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