TY - JOUR
T1 - Comparison of the Rating Scale and the Standard Gamble in Measuring Patient Preferences for Outcomes of Gallstone Disease
AU - Bass, Eric B.
AU - Steinberg, Earl P.
AU - Pitt, Henry A.
AU - Griffiths, Robert I.
AU - Lillemoe, Keith D.
AU - Saba, George P.
AU - Johns, Christina
PY - 1994/10
Y1 - 1994/10
N2 - To estimate patient preferences for gallstone-related treatments and outcomes, and assess how preferences vary by patient characteristics and scaling technique, the authors randomly assigned 40 patients without gallstones to interviews based on a rating scale (n = 22) and a standard gamble (n = 18). The patients assigned preference values (possible values 0 to 1) to open cholecystectomy (mean 0.45 by rating scale, 0.78 by standard gamble), laparoscopic cholecystectomy (0.71, 0.91), extracorporeal shock-wave lithotripsy (0.77, 0.89), acute cholecystitis (0.36, 0.77), lifetime biliary colic (0.41, 0.71), postcholecystectomy syn drome (0.43, 0.79), asymptomatic stone necessitating treatment with bile acids (0.76, 0.96), and surgical scar (0.79, 0.998). Preferences varied little by age, gender, or race. Standard gamble values were highly correlated with, but significantly greater than, rating scale values. The authors conclude that patients' preferences for gallstone-related conditions generally are significantly less than one, and differ markedly by the scaling technique used to derive them. These results should be considered when patient preferences are incorporated into analyses of gallstone treatments.
AB - To estimate patient preferences for gallstone-related treatments and outcomes, and assess how preferences vary by patient characteristics and scaling technique, the authors randomly assigned 40 patients without gallstones to interviews based on a rating scale (n = 22) and a standard gamble (n = 18). The patients assigned preference values (possible values 0 to 1) to open cholecystectomy (mean 0.45 by rating scale, 0.78 by standard gamble), laparoscopic cholecystectomy (0.71, 0.91), extracorporeal shock-wave lithotripsy (0.77, 0.89), acute cholecystitis (0.36, 0.77), lifetime biliary colic (0.41, 0.71), postcholecystectomy syn drome (0.43, 0.79), asymptomatic stone necessitating treatment with bile acids (0.76, 0.96), and surgical scar (0.79, 0.998). Preferences varied little by age, gender, or race. Standard gamble values were highly correlated with, but significantly greater than, rating scale values. The authors conclude that patients' preferences for gallstone-related conditions generally are significantly less than one, and differ markedly by the scaling technique used to derive them. These results should be considered when patient preferences are incorporated into analyses of gallstone treatments.
KW - cholecystectomy
KW - gallstones
KW - lithotripsy
KW - patient preference values
KW - rating scale
KW - stan dard gamble
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U2 - 10.1177/0272989X9401400401
DO - 10.1177/0272989X9401400401
M3 - Article
C2 - 7808206
AN - SCOPUS:0027983916
SN - 0272-989X
VL - 14
SP - 307
EP - 314
JO - Medical Decision Making
JF - Medical Decision Making
IS - 4
ER -