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Balancing data quality and participant burden: A comparative analysis of abbreviated vs extended symptom diaries in the CanTreatCOVID trial

2026-01-28 health systems and quality improvement Title + abstract only
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BackgroundSymptom diaries are widely used in acute respiratory infection trials to capture patient-reported symptom severity and recovery. Longer questionnaires may provide a more complete clinical picture but can increase participant burden and reduce adherence. Evidence directly comparing long and short formats within the same trial is limited. ObjectiveTo compare adherence, symptom trajectories, agreement between recovery measures, and predictive performance for recovery-related outcomes bet...

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