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CDISC has developed this documentation at no cost to the copyright holder or any additional cost to users of the instrument beyond the normal license fees charged by the copyright holder.

CDISC acknowledges acknowledges Gay Yuyitung, Executive Director, McMaster University, Hamilton, Ontario, Canada for the approval to include the CRQ-SAS FIRST ADMINISTRATION VERSION in the CDISC data standards.

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• The Chronic Respiratory Questionnaire Self-Administered including the standardized Dyspnea Domain (CRQSAS), Principal authors G.H. Guyatt and Dr. H.J. Schunemann
• http://milo.mcmaster.ca/questionnaires/questionnaires
• http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2845220/
• http://www.proqolid.org/instruments/chronic_respiratory_disease_questionnaire_self_administered_standardized_crq_sas
• Schunemann HJ, Griffith L, Jaeschke R, Goldstein R, Stubbing D, Austin P, Guyatt GH. A comparison of the original chronic respiratory questionnaire with a standardized version. Chest. 2003 Oct;124(4):1421-9

3 The QS Domain Model

3.1 Assumptions for the QS Domain Model

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