The Development and Validation of a Multidimensional Sum-Scaling Questionnaire to Measure Patient-Reported Outcomes in Acute Respiratory Tract Infections in Primary Care: The Acute Respiratory Tract Infection Questionnaire

A self-administered, multidimensional, sum-scaling questionnaire with high face and content validity and adequate psychometric properties for assessing severity and functional impacts from ARTIs in adults is available to clinical trials and audits in primary care.