Paper standard gamble: A paper-based measure of standard gamble utility for current health Journal Article

  


Authors: Ross, P. L.; Littenberg, B.; Fearn, P.; Scardino, P. T.; Karakiewicz, P. I.; Kattan, M. W.
Article Title: Paper standard gamble: A paper-based measure of standard gamble utility for current health
Abstract: Objectives: To develop and validate a paper-based instrument that is simple to administer and produces a reliable estimate of patient standard gamble (SG) utilities for current health status. Methods: A 1-page paper questionnaire instrument, paper standard gamble (PSG), was designed to estimate SG utilities. We performed two studies to assess the validity of PSG. First we compared PSG and SG utilities for current health in patients with prostate cancer. They randomly received either PSG followed by SG or vice versa, always with an intervening SF-12. In the second validity study, we assessed the test-retest reliability of PSG by administering it to prostate cancer patients twice, at least 2 weeks apart. Results: In the first study, utilities were assessed in 64 men (32 per SG/PSG order group). A paired-comparison t test suggested no difference between SG and PSG (mean difference = -0.007; 95% confidence interval (CI), -0.022 to 0.008). The concordance correlation coefficient was 0.92 (95% CI, 0.79 to 0.99). In the second study, test and retest PSGs were available for 184 patients. The concordance correlation coefficient was 0.88 (95% CI, 0.73 to 0.94). Conclusions: These data suggest that PSG may serve as a reliable substitute for SG when current health utility is of interest. PSG may have particular advantages for acquisition of heaFth health-related quality-of-life data in longitudinal studies.
Keywords: aged; major clinical study; validation process; united states; quality of life; patient monitoring; questionnaires; prostate cancer; confidence interval; prostatic neoplasms; standard; health care; questionnaire; sickness impact profile; correlation analysis; health status; tumors; intermethod comparison; randomization; patient acceptance of health care; student t test; correlation methods; biomedical equipment; utilities; humans; human; male; article; value of life; gamble; paper standard gamble (psg); paper standard gamble
Journal Title: International Journal of Technology Assessment in Health Care
Volume: 19
Issue: 1
ISSN: 0266-4623
Publisher: Cambridge University Press  
Date Published: 2003-01-01
Start Page: 135
End Page: 147
Language: English
DOI: 10.1017/s0266462303000138
PUBMED: 12701946
PROVIDER: scopus
DOI/URL:

http://www.scopus.com/inward/record.url?eid=2-s2.0-0344241477&partnerID=40&md5=d5f0f16ec5cd2ec77c8e3ef5c9d0696e
Notes: Export Date: 12 September 2014 -- Source: Scopus
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MSK Authors
  1. Peter T Scardino
    671 Scardino
  2. Pierre Karakiewicz
    18 Karakiewicz
  3. Paul A Fearn
    59 Fearn
  4. Michael W Kattan
    218 Kattan
  5. Phillip L Ross
    3 Ross
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