[Post-COVID-19 Functional status scale: Concordance between evaluator-administered versus self-assessed version in patients with post-COVID-19 syndrome].

Introduction: Patients diagnosed with COVID-19 may present sequelae which are called Post COVID-19 Syndrome or Long COVID in which physical, psychological and/or social complications are evident. The objective of this study was to evaluate the agreement of the Post-COVID-19 Functional Status Scale (PCFS) of the evaluator-administered version vs patient self-assessed in post-COVID-19 patients.

Methods: Observational study in patients diagnosed with COVID-19 with subsequent recovery. Once the project was approved by the ethics committee and the patients signed the informed consent, a survey was carried out to collect sociodemographic and clinical data and the application of the PCFS scale, in its two forms, self-administered and by an evaluator.

Results: 97 patients entered the study, 57.7% being women. The agreement analysis determined a concordance index of 0.857 95% CI (0.7-0.934) (almost perfect agreement). The agreement for women was 0.817 95% CI 0.700-0.934 and for men 0.907 95% CI (0.806-1).

Conclusion: The use of the Spanish version of the PCFS scale carried out by the health professional compared to the version self-assessed by patients, demonstrates adequate agreement.