Long COVID: rheumatologic/musculoskeletal symptoms in hospitalized COVID-19 survivors at 3 and 6 months.

Objective: To document the detailed characteristics including severity, type, and locations of rheumatic and musculoskeletal symptoms along with other COVID-19 persistent symptoms in hospitalized COVID-19 survivors at 3 and 6 months.

Methods: In this extension cohort study, two telephone surveys at 3 and 6 months following the hospitalization were carried out. In these telephone surveys, participants were asked regarding their symptoms through a previously designed standard questionnaire.

Results: At 3 months, 89.0% of survivors had at least one symptom, 74.6% had at least one rheumatic and musculoskeletal symptom, and 82.1% had at least one other COVID-19 symptom. At 6 months, 59.6% of survivors had at least one symptom, 43.2% had at least one rheumatic and musculoskeletal symptom, and 51.2% had at least one other COVID-19 symptom. Regarding the rheumatic and musculoskeletal symptoms, 31.6% had fatigue, 18.6% had joint pain, and 15.1% had myalgia; and regarding the other-COVID-19-symptoms, 25.3% had dyspnea, 20.0% had hair loss, and 17.2% sweat at 6 months. In an adjusted model, female patients were more likely to have fatigue (OR: 1.99, 95% CI: 1.18-3.34), myalgia (3.00, 1.51-5.98), and joint pain (3.39, 1.78-6.50) at 6 months.

Conclusion: Approximately 3 in 5 patients had at least one symptom with ≈2 in 5 patients had at least one rheumatic and musculoskeletal symptom. Fatigue, joint pain, and myalgia were the most frequent rheumatic and musculoskeletal symptoms. Joint pain and myalgia were mostly widespread. This information guide rheumatologists to understand the nature and features of persistent rheumatic and musculoskeletal symptoms in hospitalized COVID-19 survivors and may contribute to better management of these individuals. Key Points • Approximately 3 in 5 patients had at least one symptom with ≈2 in 5 patients had at least one rheumatic and musculoskeletal symptom at 6 months • Fatigue, joint pain, and myalgia were the most frequent rheumatic and musculoskeletal symptoms followed by back pain, low back pain, and neck pain • Dyspnea, hair loss, and sweat were the most frequent other-COVID-19-symptoms.