[Sinicization and reliability and validity the European organization for research and treatment of cancer quality of life questionnaire-head and neck 43].

<b>Objective:</b> To translate the European organization for research and treatment of cancer quality of life questionnaire-head and neck 43(EORTC QLQ-H&N43) and to conduct cultural debugging and reliability and validity testing for the Chinese version of the scale. <b>Methods:</b> The Chinese version of EORTC QLQ-H&N43 was formed through literal translation, integration, back translation, group discussion, cultural adjustment, and pre-investigation of the English version of the scale. From March 2023 to December 2023, convenience sampling was used to investigate 254 patients with head and neck tumors at the Cancer Hospital of the Chinese Academy of Medical Sciences, including 197 males and 57 females, aged (55.6±13.6) years. SPSS 25.0 statistical software was used to analyze the performance of the scale. <b>Results:</b> The Chinese version of EORTC QLQ-H&N43 retained all 43 items. After evaluation by 5 experts, the content validity index (I-CVI) at the item level of the scale ranged from 0.80 to 1.00, and the average content validity index (S-CVI/Ave) at the scale level was 0.991. Through exploratory factor analysis, a total of 9 common factors were extracted, with a cumulative variance contribution rate of 68.158%; Cronbach's α coefficient of the total scale was 0.943, and the half reliability was 0.896. <b>Conclusion:</b> The Chinese version of EORTC QLQ-H&N43 has good reliability and validity, which can be used as an effective tool to evaluate the quality of life of head and neck cancer patients in China.