Spirometry and dyspnea in patients with COPD: When small differences mean little

Chest

Volumn 109, Issue 5, 1996, Pages 1163-1168

  Redelmeier, Donald A ^a,b   Goldstein, Roger S ^a,c   Min, Simon T ^a,b   Hyland, Robert H ^a,b  

^a UNIVERSITY OF TORONTO   (Canada)

^b ST MICHAEL'S HOSPITAL   (Canada)

^c WEST PARK HEALTHCARE CENTRE   (Canada)

Author keywords

COPD; dyspnea; spirometry

Indexed keywords

ARTICLE; CHRONIC OBSTRUCTIVE LUNG DISEASE; DYSPNEA; FEMALE; FORCED EXPIRATORY VOLUME; HEALTH STATUS; HUMAN; MAJOR CLINICAL STUDY; MALE; PRIORITY JOURNAL; SPIROMETRY; VITAL CAPACITY;

EID: 0029991285     PISSN: 00123692     EISSN: None     Source Type: Journal    
DOI: 10.1378/chest.109.5.1163     Document Type: Article

References (26)

1. Crapo RO. Pulmonary-function testing. N Engl J Med 1990; 331:25-30
2. Mahler DA, Wells CK. Evaluation of clinical methods for rating dyspnea. Chest 1993; 3:580-86
3. Naylor CD, Llewellyn-Thomas HA. Can there be a more patient centered approach to determining clinically important effect sizes for randomized treatment trials. J Clin Epidemiol 1994;47:787-95
4. Fletcher C, Peto R. The natural history of chronic airflow obstruction. BMJ 1977; 1:1645-48
5. Guyatt GH, Berman LB, Townsend M. Long-term outcome after respiratory rehabilitation. Can Med Assoc J 1987; 137:1089-95
6. American Thoracic Society. Standardization of spirometry, 1994 update. Am J Respir Crit Care Med 1995; 152:1107-36
7. Goldstein RS, Gort EH, Stubbing D, et al. Randomised controlled trial of respiratory rehabilitation. Lancet 1994;344:1394-97
8. O'Donnell DE, Webb KA. Exertional breathlessness in patients with chronic airflow limitation: the role of lung hyperinflation. Am Rev Respir Dis 1993; 148:1351-57
9. American Thoracic Society. Lung function testing: selection of reference values and interpretative strategies. Am Rev Respir Dis 1991; 144:1202-18
10. Cohen J. Statistical power analysis for the behavioral sciences. New York: Academic Press, 1969
11. Redelmeier DA, Lorig K. Assessing the clinical importance of symptomatic improvements: an illustration in rheumatology. Arch Intern Med 1993; 153:1337-42
12. Wells GA, Tugwell P, Kraag GR, et al. Minimum important difference between patients with rheumatoid arthritis: the patient's perspective. J Rheumatol 1993; 20:557-60
13. Redelmeier DA, Guyatt GH, Goldstein RS. Assessing the minimal important difference in symptoms: a comparison of two techniques. J Clin Epidemiol (in press)
14. Redelmeier DA, Guyatt GH. Goldstein RS. On the debate over methods for estimating the clinically important difference. J Clin Epidemiol (in press).
15. Krech D, Crutchfield RS, Livson N, et al, eds. Elements of psychology. 4th ed. New York: Alfred A. Knopf, 1982; 116
16. Samuelson PA. Economics. 10th ed. New York: McGraw-Hill, 1976
17. Hulley SB, Cummings SR. Designing clinical research. Baltimore: Williams & Wilkins, 1988
18. Eaton ML. Green BA, Church TR, et al. Efficacy of theophylline in 'irreversible' airflow obstruction. Ann Intern Med 1980; 92: 758-61
19. Mahler DA, Matthay RA, Snyder PE, et al. Sustained-release theophylline reduces dyspnea in non-reversible obstructive lung disease. Am Rev Respir Dis 1985; 131:22-5
20. Wolkove N, Dajezman E, Colacone A, et al. The relationship between pulmonary function and dyspnea in obstructive lung disease. Chest 1989; 96:1247-51
21. O'Donnell DE, Webb KA. Breathlessness in patients with severe chronic airflow limitation: physiologic correlates. Chest 1992; 102:824-31
22. Burrows B, Bloom JW, Traver GA, et al. The course and prognosis of different forms of chronic airways obstruction in a sample from the general population. N Engl J Med 1987; 317:1309-14
23. Knudson RJ, Slatin RC, Lebowitz MD. The maximal expiratory flow volume curve: normal standards, variability, and effects of age. Am Rev Respir Dis 1976; 111:587-600
24. Zechman FW, Wiley RL. Afferent inputs to breathing: respiratory sensation. In: Fishman AP, Cherniak NS, Widdicombe JG, eds. Handbook of physiology. Bethesda, Md: American Physiological Society, 1986; 449-74
25. D'Amato MR. Experimental psychology: methodology, psychophysics, and learning. New York: McCraw-Hill, 1970
26. Redelmeier DA, Rozin P, Kahneman D. Understanding patients' decisions: cognitive and emotional perspectives. JAMA 1993; 270:72-6