Mazur D J, Hickam D H
Department of Veterans Affairs Medical Center, Portland, OR 97207.
J Gen Intern Med. 1990 Sep-Oct;5(5):402-5. doi: 10.1007/BF02599425.
To assess how patients use graphic data to decide on preferences between alternative treatments.
Cross-sectional survey of patients, physicians, and medical students. The physicians and medical students served as a control group with which to compare the patients' responses.
A university-based Department of Veterans Affairs Medical Center.
152 patients seen in a general medicine clinic, 57 medical students, and 11 physicians.
Subjects were given a survival graph showing the patient outcomes for two different unidentified treatments for an unidentified serious disease. They were asked to indicate which treatment they preferred and which portion(s) of the curves most influenced their preference. A large majority of both patients and health professionals preferred the treatment that had worse short-term and better long-term survival. Eleven percent of patients and 51% of health professionals identified mid-curve data (points other than the curve end-points) as most influencing their preferences.
A graphic survival curve appears to provide enough information to assess patient preferences between two alternative treatments. Patients appeared to differ from physicians and medical students in their interpretation of the curves.
评估患者如何利用图表数据来决定对不同治疗方案的偏好。
对患者、医生和医学生进行横断面调查。医生和医学生作为对照组，用于比较患者的反应。
一所大学附属的退伍军人事务医疗中心。
152名在普通内科门诊就诊的患者、57名医学生和11名医生。
受试者被给予一张生存曲线图，显示一种未指明的严重疾病的两种不同未指明治疗方案的患者预后情况。他们被要求指出更喜欢哪种治疗方案以及曲线的哪些部分对他们的偏好影响最大。绝大多数患者和医疗专业人员都更喜欢短期生存较差但长期生存较好的治疗方案。11%的患者和51%的医疗专业人员认为曲线中间部分的数据（非曲线端点的数据点）对他们的偏好影响最大。
一张生存曲线图似乎能提供足够的信息来评估患者对两种不同治疗方案的偏好。患者在对曲线的解读上似乎与医生和医学生有所不同。
