Functional dyspnea as an early marker of vulnerability to persistent physical symptoms in the CONSTANCES population-based cohort

J Psychosom Res. 2026 Jun 1:209:112887. doi: 10.1016/j.jpsychores.2026.112887. Online ahead of print.

Abstract

Background: Persistent Physical Symptoms (PPS) are disabling bodily symptoms lasting several months, irrespective of their underlying cause. They share mechanisms with functional disorders, characterized by a mismatch between reported symptoms and objective findings. Functional dyspnea-self-reported shortness of breath in the absence of identifiable cardiopulmonary disease-may represent an early marker of vulnerability to PPS. We investigated whether functional dyspnea assessed before the COVID-19 pandemic was associated with the incidence of PPS during the pandemic.

Methods: In this population-based study, we included participants from the French CONSTANCES cohort with normal spirometry and no known condition causing dyspnea at inclusion (2012-2019). Functional dyspnea was assessed at inclusion and incident PPS lasting more than 8 weeks were reported during the COVID-19 pandemic, regardless of SARS-CoV-2 infection. Multivariable logistic regression models adjusted for age, sex, body mass index, and educational level were used to estimate the associations.

Results: Among 17,326 participants (mean age 47.8 years; 54.3% women), 2230 (12.9%) reported functional dyspnea at inclusion. During the pandemic, 6687 participants (39.0%) reported at least one PPS. Functional dyspnea at inclusion was associated with a higher risk of incident PPS (OR 1.79, 95% CI [1.64-1.97], p < 0.001). Results were consistent across sensitivity analyses, including those accounting for SARS-CoV-2 infection. Depressive symptoms and self-rated health explained only a small proportion of the association.

Conclusion: In this population-based cohort study, functional dyspnea may be a marker of future PPS, supporting the hypothesis of mechanisms common to all PPS, regardless of their type or origin.

Keywords: COVID-19; Functional dyspnea; Persistent physical symptoms.