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The "utility" of the Time Trade-Off method in cancer patients: feasibility and proportional Trade-Off. 1995

A M Stiggelbout, and G M Kiebert, and J Kievit, and J W Leer, and J D Habbema, and J C De Haes
Medical Decision Making Unit, University Hospital Leiden, The Netherlands.

We examined the feasibility and the proportional trade-off assumption of the Time Trade-Off method. Utilities were assessed of the actual health states of 54 testicular and 72 colorectal cancer patients, treated with the curative intent and 29 incurable colorectal cancer patients. Three periods of time were used to assess proportionality: the subject's life expectancy and two shorter periods. Results showed the method to be feasible in curatively treated patients, though the use of life expectancy posed difficulties in some very old subjects. This same difficulty was encountered in patients with symptomatic incurable disease. A two step procedure is proposed as a solution. The proportional trade-off assumption was violated. Utilities for the longer period were smaller than those for the shorter periods. Life expectancy and trade-off did not correlate, though. Remarkable was that many patients were unwilling to trade at all. The implications of the findings are discussed.

UI MeSH Term Description Entries
D008017 Life Expectancy Based on known statistical data, the number of years which any person of a given age may reasonably be expected to live. Life Extension,Years of Potential Life Lost,Expectancies, Life,Expectancy, Life,Life Expectancies
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009373 Neoplasms, Germ Cell and Embryonal Neoplasms composed of primordial GERM CELLS of embryonic GONADS or of elements of the germ layers of the EMBRYO, MAMMALIAN. The concept does not refer to neoplasms located in the gonads or present in an embryo or FETUS. Germ Cell Cancer,Germ Cell Tumor,Neoplasms, Embryonal and Mixed,Cancer, Embryonal,Cancer, Embryonal and Mixed,Embryonal Neoplasms,Germ Cell Neoplasms,Germ Cell and Embryonal Neoplasms,Germ Cell and Embryonic Neoplasms,Neoplasms, Embryonal,Neoplasms, Germ Cell,Neoplasms, Germ Cell and Embryonic,Cancer, Germ Cell,Cancers, Embryonal,Cancers, Germ Cell,Embryonal Cancer,Embryonal Cancers,Embryonal Neoplasm,Germ Cell Cancers,Germ Cell Tumors,Neoplasm, Embryonal,Tumor, Germ Cell,Tumors, Germ Cell
D010342 Patient Acceptance of Health Care Patients' willingness to receive health care. Acceptability of Health Care,Health Care Seeking Behavior,Acceptability of Healthcare,Acceptors of Health Care,Health Care Utilization,Nonacceptors of Health Care,Patient Acceptance of Healthcare,Care Acceptor, Health,Care Acceptors, Health,Care Nonacceptor, Health,Care Nonacceptors, Health,Health Care Acceptability,Health Care Acceptor,Health Care Acceptors,Health Care Nonacceptor,Health Care Nonacceptors,Healthcare Acceptabilities,Healthcare Acceptability,Healthcare Patient Acceptance,Healthcare Patient Acceptances,Utilization, Health Care
D011795 Surveys and Questionnaires Collections of data obtained from voluntary subjects. The information usually takes the form of answers to questions, or suggestions. Community Survey,Nonrespondent,Questionnaire,Questionnaires,Respondent,Survey,Survey Method,Survey Methods,Surveys,Baseline Survey,Community Surveys,Methodology, Survey,Nonrespondents,Questionnaire Design,Randomized Response Technique,Repeated Rounds of Survey,Respondents,Survey Methodology,Baseline Surveys,Design, Questionnaire,Designs, Questionnaire,Methods, Survey,Questionnaire Designs,Questionnaires and Surveys,Randomized Response Techniques,Response Technique, Randomized,Response Techniques, Randomized,Survey, Baseline,Survey, Community,Surveys, Baseline,Surveys, Community,Techniques, Randomized Response
D005240 Feasibility Studies Studies to determine the advantages or disadvantages, practicability, or capability of accomplishing a projected plan, study, or project. Feasibility Study,Studies, Feasibility,Study, Feasibility
D005260 Female Females
D005500 Follow-Up Studies Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease. Followup Studies,Follow Up Studies,Follow-Up Study,Followup Study,Studies, Follow-Up,Studies, Followup,Study, Follow-Up,Study, Followup
D006304 Health Status The level of health of the individual, group, or population as subjectively assessed by the individual or by more objective measures. General Health,General Health Level,General Health Status,Level of Health,Overall Health,Overall Health Status,General Health Levels,Health Level,Health Level, General,Health Levels,Health Status, General,Health Status, Overall,Health, General,Health, Overall,Level, General Health,Levels, General Health,Status, General Health,Status, Health,Status, Overall Health

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