Patients' Preferences for Risk Disclosure and Role in Decision Making for Invasive Medical Procedures

Abstract

OBJECTIVE:To assess the level of involvement patients want in decision making related to the acceptance or rejection of an invasive medical intervention and whether their preference for decision making is related to their preference for qualitative (verbal) or quantitative (numeric) information about the risks of the procedure. SETTING:A university-based Department of Veterans Affairs Medical Center. DESIGN:Cross-sectional study using structured interviews of consecutive patients seen for continuity care visits in a general medicine clinic. PATIENTS:Four hundred and sixty-seven consecutive patients with a mean age of 65.2 years (SD 10.70 years, range 31-88 years) and with a mean of 12.6 years (SD 2.96 years, range 0-24 years) of formal education. MEASUREMENTS AND MAIN RESULTS:In the context of an invasive diagnostic or therapeutic intervention, patients were asked whether they preferred patient-based, physicianbased, or shared patient-physician decision making. Patients were asked to give the ratio of patient-to-physician decision making they preferred, and whether they preferred discussions using words, numbers, or both. Of 467 subjects, 318 (68%) preferred shared decision making; 100 (21.4%) preferred physician-based decision making; and 49 (10.5%) preferred patient-based decision making. In terms of risk disclosure, 436 (93.4%) preferred that their physician disclose risk information to them. Of these 436 patients, 42.7% preferred disclosure of information about the probability of adverse outcomes using qualitative (verbal) expressions of probability; 35.7% preferred disclosure in terms of quantitative (numeric) expressions of probability; and 9.8% preferred disclosure in both qualitative and quantitative terms. Younger patients (odds ratio [

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