Evaluating effects of method of administration on Walking Impairment Questionnaire.

作者: Karin S Coyne , Mary Kay Margolis , Kim A Gilchrist , Susan P Grandy , William R Hiatt

DOI: 10.1016/S0741-5214(03)00312-4

关键词:

摘要: Abstract Background Intermittent claudication resulting from peripheral arterial disease (PAD) can substantially impair walking function. The Walking Impairment Questionnaire (WIQ) assesses patient self-reported difficulty in walking. Currently this questionnaire is validated for interviewer administration only. Since be burdensome a large clinical trial, we examined the effects of alternative methods on responses WIQ. Methods WIQ, which consists four subscales (pain severity, distance, speed, stairs), was modified to self-administered or interviewer-administered by telephone. Patients with PAD were recruited two sites and randomized into groups: group 1 WIQ self-administered, then telephone-administered; 2 telephone-administered, self-administered. administrations occurred 4 7 days apart. Additional measures (SF-36, EQ-5D, symptom scale) data included further assess validity symptoms patients claudication. Telephone interviews conducted trained interviewers using standardized scripts. Two-week test-retest reliability assessed both (group 1) telephone-administered 2). Results Sixty at (n = 30 per group). Seventy-eight percent men; mean age 67.1 years; 83% white. Mean duration 6.8 years. No significant differences observed subscale scores between self telephone administration. interaction order method detected. Cronbach α stair-climbing ranged 0.82 0.94. Correlations among scale good ( r −0.34 −0.57). physical health SF-36 0.24-0.59) higher than mental health–related 0.08-0.26). Conclusions demonstrated These results suggest that versions used reliably efficiently trials.

参考文章(23)
Roman Jaeschke, Joel Singer, Gordon H. Guyatt, Measurement of health status: Ascertaining the minimal clinically important difference Controlled Clinical Trials. ,vol. 10, pp. 407- 415 ,(1989) , 10.1016/0197-2456(89)90005-6
Bert Spilker, Quality of life and pharmacoeconomics in clinical trials Lippincott-Raven. ,(1996)
Judith G. Regensteiner, John E. Ware, Walter J. McCarthy, Peter Zhang, William P. Forbes, Jeffrey Heckman, William R. Hiatt, Effect of cilostazol on treadmill walking, community-based walking ability, and health-related quality of life in patients with intermittent claudication due to peripheral arterial disease: meta-analysis of six randomized controlled trials. Journal of the American Geriatrics Society. ,vol. 50, pp. 1939- 1946 ,(2002) , 10.1046/J.1532-5415.2002.50604.X
D. A. Revicki, N. K. Leidy, L. Howland, Evaluating the psychometric characteristics of the Psychological General Well-Being Index with a new response scale. Quality of Life Research. ,vol. 5, pp. 419- 425 ,(1996) , 10.1007/BF00449916
Ian C. Chetter, J. Ian Spark, D. Julian A. Scott, Ralph C. Kester, Does Angioplasty Improve the Quality of Life for Claudicants?: A Prospective Study Annals of Vascular Surgery. ,vol. 13, pp. 93- 103 ,(1999) , 10.1007/S100169900226
Diane Treat-Jacobson, Sheri L. Halverson, Andria Ratchford, Judith G. Regensteiner, Ruth Lindquist, Alan T. Hirsch, A Patient-Derived Perspective of Health-Related Quality of Life With Peripheral Arterial Disease Journal of Nursing Scholarship. ,vol. 34, pp. 55- 60 ,(2002) , 10.1111/J.1547-5069.2002.00055.X
G. H Guyatt, E. F Juniper, S. D Walter, L. E Griffith, R. S Goldstein, Interpreting treatment effects in randomised trials BMJ. ,vol. 316, pp. 690- 693 ,(1998) , 10.1136/BMJ.316.7132.690