Psychometric properties of Chinese version SF-36 for measuring quality of life in patients with oral cancer

Abstract

目的: 分析SF-36中文版用于口腔癌患者生活質量(quality of life,QOL)測定的心理測量學特性。方法: 采用SF-36中文版對97例確診為口腔鱗癌的連續患者進行QOL的測量,分析量表的信度、效度和反映度。結果: 量表8個領域的克朗巴赫系數為0.76～0.96,分半信度為0.69;35個條目可提取9個因子,累計方差貢獻率為74.2%;以FACT-G第四版中文版為效標,其效標效度為0.734;量表能敏感的區分口腔癌患者QOL隨時間的變化,對已知的兩組口腔癌患者術前QOL的差異也表現出一定的區分能力。結論: SF-36用于國人口腔癌患者生活質量的測定具有較好的信度、效度和反映度,因而具有一定的實用價值。

Objective: To analyze psychometric properties of Chinese version SF-36 for measuring quality of life(QOL) in patients with oral cancer.Methods: Quality of life of 97 consecutive patients who were diagnosed as oral squamous cell carcinoma was assessed by Chinese version SF-36.The validity,reliability and responsiveness of the scale were analyzed.Results: The internal consistency α for eight domains was 0.76-0.96,and the split-half reliability was 0.69.An exploratory factor analysis on 35 items produced 9 factors, and the analysis explained 72.4 % of total variation. The criterion validity with FACT-G was 0.734. The instrument could detect the changes of QOL over time sensitively, and its ability to access differences between T1 + T2 groups and T3 + T4 groups was also satisfactory. Conclusion: Chinese version SF-36 could measure the quality of life of patients with oral cancer with better reliability, validity and respnsiveness.