Ideas in this flowchart

• Statistical analysis of persistent PCC and functional limitation
• Analysis of persistent PCC at Phase II
• Included participants had PCC in Phase I and completed Phase II
• A multivariable logistic regression model examined persistent PCC versus recovery at Phase II
• The same analytical strategy as the Phase I PCC analysis was used
• Additional analyses examined persistent symptoms and functional limitation
• Separate univariable and multivariable logistic regression models were constructed for Phase I and Phase II
• The models examined associations between persistent symptoms and functional limitation among participants with PCC
• Functional limitation was defined as PCFS ≥ 2 versus grades 0–1
• Multivariable models used backward likelihood-ratio selection with a removal criterion of p < [value not provided]