Bridging the Gap: Using Triangulation Methodology to Estimate Minimal Clinically Important Differences (MCIDs)

REFERENCES

• Jaeschke R, Singer J, Guyatt G. Measurement of health status: ascertaining the minimal clinically important difference. Control Clin Trials 1989; 10:407–415. [PUBMED], [INFOTRIEVE]
   PubMedGoogle Scholar
• Guyatt G, Berman L, Townsend M, Pugsley S, Chambers L. A measure of quality of life for clinical trials in chronic lung disease. Thorax 1987; 42:773–778. [PUBMED], [INFOTRIEVE]
   PubMed Web of Science ®Google Scholar
• Guyatt G, Nogradi S, Halcrow S, Singer J, Sullivan M, Fallen E. Development and testing of a new measure of health status for clinical trials in heart failure. J Gen Intern Med 1989; 4:101–107. [PUBMED], [INFOTRIEVE]
   PubMed Web of Science ®Google Scholar
• Norman G, Stratford P, Regehr G. Methodological problems in the retrospective computation of responsiveness to change: the lessons of Cronbach. J Clin Epidemiol 1997; 50(8):869–879. [PUBMED], [INFOTRIEVE], [CSA], [CROSSREF]
   PubMed Web of Science ®Google Scholar
• Guyatt G, Norman G, Juniper E, Griffith L. A critical look at transition ratings. J Clin Epidemiol 2002; 55:900–908. [PUBMED], [INFOTRIEVE], [CSA], [CROSSREF]
   PubMed Web of Science ®Google Scholar
• Norman G, Sloan J, Wyrwich K. Interpretation of changes in health-related quality of life: the remarkable universality of half a standard deviation. Med Care 2003; 41:582–592. [PUBMED], [INFOTRIEVE], [CROSSREF]
   PubMed Web of Science ®Google Scholar
• Wyrwich K, Tierney W, Wolinsky F. Further evidence supporting a SEM-based criterion for identifying meaningful intra-individual changes in health-related quality of life. J Clin Epidemiol 1999; 52(9):861–873. [PUBMED], [INFOTRIEVE], [CSA], [CROSSREF]
   PubMed Web of Science ®Google Scholar
• Brook R, Chassin M, Fink A, Solomon D, Kosecoff J, Park R. A method for the detailed assessment of the appropriateness of medical technologies. Int J Technol Assess Health Care 1986; 2:53–63. [PUBMED], [INFOTRIEVE]
   PubMedGoogle Scholar
• Wyrwich K, Fihn S, Tierney W, Kroenke K, Babu A, Wolinsky F. Clinically important differences in health-related quality of life for patients with chronic obstructive pulmonary disease: an expert panel report. J Gen Intern Med 2003; 18(3):196–202. [PUBMED], [INFOTRIEVE], [CSA], [CROSSREF]
   PubMed Web of Science ®Google Scholar
• Wyrwich K, Nelson H, Tierney W, Kroenke K, Babu A, Wolinsky F. Clinically important differences in health-related quality of life for patients with asthma: an expert panel report. J Asthma, Allergy Immunol 2003; 91(2):148–153. [CSA]
   PubMed Web of Science ®Google Scholar
• Wyrwich K, Spertus J, Kroenke K, Tierney W, Babu A, Wolinsky F. Clinically important differences in health status for patients with heart disease: an expert consensus panel report. Am Heart J 2004; 147(4):615–622. [PUBMED], [INFOTRIEVE], [CROSSREF]
   PubMed Web of Science ®Google Scholar
• Leidy N, Rennard S, Schmier J, Jones M, Goldman M. The Breathlessness, Cough, and Sputum Scale: the development of empirically based guidelines for interpretation. Chest 2003; 124(6):2182–2191. [PUBMED], [INFOTRIEVE], [CROSSREF]
   PubMed Web of Science ®Google Scholar
• Leidy K, Schmier J, Jones M, Lloyd J, Rocchiccioli K. Evaluating symptoms in chronic obstructive pulmonary disease: validation of the Breathlessness, Cough and Sputum Scale. Respir Med 2003; 97(suppl A):S59–S70. [PUBMED], [INFOTRIEVE]
   PubMedGoogle Scholar
• Celli B, Hapin D, Hepburn R, Byrne N, Keating E T, Goldman M. Symptoms are an important outcome in chronic obstructive pulmonary disease clinical trials: results of a 3-month comparative study using the Breathlessness, Cough and Sputum Scale (BCSS). Respir Med 2003; 97(suppl A):S35–S43. [PUBMED], [INFOTRIEVE]
   Google Scholar
• Laursen L C, Lindqvist A, Hepburn T, Lloyd J, Perrett J, Sanders N, Rocchiccioli K. The role of the novel D2/β2-agonist,Viozan (sibenadet HCl), in the treatment of symptoms of chronic obstructive pulmonary disease: results of a large-scale clinical investigation. Respir Med 2003; 97(suppl A):S23–S33. [PUBMED], [INFOTRIEVE]
   Google Scholar
• Rennard S. Introduction: the symposium that never occurred: pre-clinical and clinical development of sibenadet. Respir Med 2003; 97(suppl A):S1–S2. [PUBMED], [INFOTRIEVE]
   Google Scholar
• American Thoracic Society. Lung function testing: selection of refence values and interpretive strategies. Am Rev Respir Dis 1991; 144:1202–1218.
   PubMed Web of Science ®Google Scholar
• Siafakas N M, Vermeire P, Pride N B, Paoletti P, Gibson J, Howard P, Yernault J C, Decramer M, Higenbottam T, Postma D S, on behalf of the Task Force. Optimal assessment and management of chronic obstructive pulmonary disease (COPD). The European Respiratory Society Task Force. Eur Respir J 1995; 8(8):1398–1420. [PUBMED], [INFOTRIEVE], [CROSSREF]
   PubMed Web of Science ®Google Scholar
• Jones P W, Quirk F H, Baveystock C M, Littlejohns P. A self-complete measure of health status for chronic airflow limitation. The St. George's Respiratory Questionnaire. Am Rev Respir Dis 1992; 145(6):1321–1327. [PUBMED], [INFOTRIEVE]
   PubMed Web of Science ®Google Scholar
• Jones P W. Interpreting thresholds for a clinically significant change in health status in asthma and COPD. Eur Respir J 2002; 19(3):398–404. [PUBMED], [INFOTRIEVE], [CROSSREF]
   PubMed Web of Science ®Google Scholar
• Cohen J. Statistical Power Analysis for the Behavioral Sciences. 2nd ed. Hillside, NJ: Lawrence Erlbaum Associates, 1988.
   Google Scholar
• Kazis L E, Anderson J J, Meenan R F. Effect sizes for interpreting changes in health status. Med Care 198; 927(3 suppl):S178–S189.
   Google Scholar
• Miller G. The magic number seven plus or minus two: some limits on our capacity for processing information. Psychol Rev 1956; 63:81–97. [PUBMED], [INFOTRIEVE]
   PubMed Web of Science ®Google Scholar
• Wyrwich K, Nienaber N, Tierney W, Wolinsky F. Linking clinical relevance and statistical significance in evaluating intra-individual changes in health-related quality of life. Med Care 1999; 37(4):469–478. [PUBMED], [INFOTRIEVE], [CROSSREF]
   PubMed Web of Science ®Google Scholar
• Wyrwich K, Tierney W, Wolinsky F. Using the standard error of measurement to identify important intra-individual change on the Asthma Quality of Life Questionnaire. Qual Life Res 2002; 11(1):1–7. [PUBMED], [INFOTRIEVE], [CSA], [CROSSREF]
   PubMed Web of Science ®Google Scholar
• Cella D, Eton D T, Fairclough D L, Bonomi P, Heyes A E, Silberman C, Wolf M K, Johnson D H. What is clinically meaningful change (CMC) on the Functional Assessment of Cancer Therapy—Lung (FACT-L) questionnaire. An analysis of data from ECOG 5592. J Clin Epidemiol 2002; 55:286–295. [CROSSREF]
   Google Scholar
• Leidy N. Interpreting health-related quality of life outcomes. Appl Clin Trials 2000; 9(9):26.
   Google Scholar