Following an acute COVID-19 infection, many patients suffer from long lasting physical symptoms that may greatly impair quality of life. Persisting dyspnea and other functional respiratory complaints could evoke Hyperventilation Syndrome (HVS) as a putative contributor of the long-COVID presentation in COVID-19 survivors. We aimed to assess the possible relationship between a HVS and previous acute SARS-CoV-2 infection.

Inclusion Criteria:

• Read and speak French
• Perform a pulmonary function test

Exclusion Criteria:

- incomplete questionnaire or inability to obtain an interpretable lung function assessment

The inclusion criteria were age greater than 18 years old, with the ability to perform a pulmonary function test in our Lung Function and Exercise Testing Department. Eligible patients were able to read and speak French in order to correctly answer to the self-reported questionnaire. The exclusion criteria were incomplete questionnaire or inability to obtain an interpretable lung function assessment.