背景與目的： 針對醫療計劃進行療效評估，是當今醫療服務提供者的重要課題;除了有助于證據醫學的發展，并可提供為醫療下策的參考。本研究的目的在探討接受門診運動訓練對于是冠狀動脈繞道手術病患品質調整存活時間之影響。方法：本研究采用專為冠狀動脈繞道手術病患的設計之生活品質問卷作為測量工具。內容包括台灣簡明版世界衛生組織生活品質問卷28題和特殊病題目5題，測量于是民國83年1月至90年10月間接受繞道手術之運動組及對照組病患的生活品質及效用值：再以專家系統將效用值整合入存活函數中，以比較兩組病患之品質調整後存活時間。結果：本研究于3家醫院共有135位病患完成生活品質問卷調查，運動訓練組共有65位，對照組有70位：兩組受傷病患之基本資料僅于個人收入和教育程度方面有差羿，運動組以高多歷與高收入者居多。在生活品質及效用結果方面，運動組病患于環境範疇之分數及效用值大于對照組：于組合7年存活率結果發現，運動組于環境範疇每年較對照組每年顯著增加了0.069品質調整後存活年(P<0.05)。結論：運動訓練有助于提昇冠狀動脈繞道手術後品質調整之存活時間。

Background and purpose: The outpatient exercise training is commonly prescribed for patients after coronary artery bypass grafting (CABG). The purpose of this study was to examine the effect of the outpatient exercise training patients after CABG on quality adjusted life year (QALY). Methods: During the period of January 1994 to October 2001, 65 patients participated in an outpatient exercise training and 70 controls without training after CABG were recruited from three hospitals. The data were collected on their demographic characteristics and quality of life by the WHOQOL (World Health Organization Quality of Life) questionnaire. The QALY was calculated by Monte Carlo-quality adjusted survival estimation. Results: Patients in the exercise group demonstrated significantly higher scores in the environment domain of the WHOQOL and the QALY gained from exercise training was 0.069 year for the environment domain in the 7-year survival period. Conclusion: The outpatient exercise training is beneficial on the QALY of patients after CABG.