Hasanpour Neda, Attarbashi Moghadam Behrouz, Sami Ramin, Tavakol Kamran
Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran.
Department of Internal Medicine, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
Acta Med Iran. 2016 Aug;54(8):518-524.
The clinical COPD questionnaire (CCQ) has been developed to measure the health status of COPD patients. The aim of this study was to translate CCQ into the Persian language and assess the validity and reliability of the translated version. We used a forward-backward procedure to translate the questionnaire. In a cross-sectional study 100 COPD patients and 50 healthy subjects over 40 years old were selected to assess the reliability and construct validity of the instrument. The face and content validity were used for the questionnaire validity. Validity was examined in a population of patients with COPD, using the Persian validated version of the St George's Respiratory Questionnaire (PSGRQ). In order to assess the questionnaire's reliability, the Intraclass correlation coefficient (ICC) and Cronbach's alpha were calculated. Test-retest reliability was tested by re-administering the Persian version of the CCQ (PCCQ) after 1 week. Test-retest carry out of data demonstrates that the PCCQ has excellent reliability (ICC for all 3 domains were higher than 0.9). Internal consistency was found by Cronbach's alpha to be 0.96, 0.94, 0.97, and 0.98 for the symptom, mental state, functional state and total scores respectively. In addition, the correlation between the components of PCCQ and PSGRQ showed satisfactory construct validity. Analyzing the data from healthy subjects and patients divulged that the PCCQ has acceptable discriminant validity. In general, the PCCQ had satisfactory reliability and validity for assessing health-related quality of life status of Iranian COPD patients.
临床慢性阻塞性肺疾病问卷（CCQ）已被开发用于测量慢性阻塞性肺疾病（COPD）患者的健康状况。本研究的目的是将CCQ翻译成波斯语，并评估翻译版本的有效性和可靠性。我们采用了正向-反向程序来翻译问卷。在一项横断面研究中，选取了100名COPD患者和50名40岁以上的健康受试者，以评估该工具的可靠性和结构效度。问卷效度采用表面效度和内容效度。使用圣乔治呼吸问卷（SGRQ）的波斯语验证版本，在COPD患者群体中检验效度。为了评估问卷的可靠性，计算了组内相关系数（ICC）和克朗巴哈系数。通过在1周后重新发放波斯语版CCQ（PCCQ）来测试重测信度。数据的重测结果表明，PCCQ具有出色的可靠性（所有3个领域的ICC均高于0.9）。克朗巴哈系数发现，症状、精神状态、功能状态和总分的内部一致性分别为0.96、0.94、0.97和0.98。此外，PCCQ各成分与PSGRQ之间的相关性显示出令人满意的结构效度。对健康受试者和患者的数据进行分析发现，PCCQ具有可接受的区分效度。总体而言，PCCQ在评估伊朗COPD患者的健康相关生活质量状况方面具有令人满意的可靠性和有效性。
