Tuberculosis and Lung Disease Research Center, Tabriz University of Medical Sciences , Tabriz, Iran.
Department of Statistics and Epidemiology, Faculty of Health, Tabriz University of Medical Sciences , Tabriz, Iran.
Expert Rev Respir Med. 2020 Jul;14(7):757-762. doi: 10.1080/17476348.2020.1750373. Epub 2020 Apr 6.
The work productivity and activity impairment (WPAI) questionnaire is a fine linguistic validated tool to measure work productivity and activity impairment. Considering its capability, this study aimed to evaluate the validity of the Persian version of WPAI-AQ in asthmatics.
The standard forward-backward process was used to translate the English version of WPAI-AQ into Persian. The convergent validity and responsiveness were evaluated by analyzing the correlations between the Persian WPAI-AQ and the health outcomes, and its longitudinal change score with the change in SGRQ score, respectively. Additionally, the stability was estimated according to test-retest scores.
There was a significant correlation between the Persian WPAI-AQ related outcomes and symptoms, activities, and impacts of disease (r = 0.41-0.89, p < 0.04). Desirable stability was observed by the test-retest analysis; 0.90 (95%CI: 0.89-0.95) for overall impairment, 0.90 (95%CI: 0.86-0.93) for work time missed, 0.72 (95%CI: 0.54-0.83) for activity impairment; 0.79 (95%CI: 0.71-0.86) for student class time missed, and 0.76 (95%CI: 0.66-0.81) for school impairment. Response to the change scores strongly supported the longitudinal responsiveness of the Persian WPAI-AQ (r = 0.37 to 0.63, p < 0.05).
The Persian WPAI-AQ is a feasible valid tool to estimate work productivity and activity impairment in Persian-speaking asthmatic patients.
工作生产力和活动障碍（WPAI）问卷是一种精细的语言验证工具，用于衡量工作生产力和活动障碍。考虑到其能力，本研究旨在评估 WPAI-AQ 波斯文版本在哮喘患者中的有效性。
采用标准的前后翻译过程将 WPAI-AQ 的英文版本翻译成波斯文。通过分析 WPAI-AQ 与健康结果之间的相关性以及与 SGRQ 评分变化的纵向变化评分来评估其收敛有效性和反应性。此外，根据测试 - 重测分数评估稳定性。
WPAI-AQ 相关结果与症状、活动和疾病影响之间存在显著相关性（r=0.41-0.89，p<0.04）。通过测试 - 重测分析观察到良好的稳定性；总障碍为 0.90（95%CI：0.89-0.95），缺勤时间为 0.90（95%CI：0.86-0.93），活动障碍为 0.72（95%CI：0.54-0.83），学生上课时间缺失为 0.79（95%CI：0.71-0.86），学校障碍为 0.76（95%CI：0.66-0.81）。对变化分数的反应强烈支持波斯文 WPAI-AQ 的纵向反应性（r=0.37 至 0.63，p<0.05）。
波斯文 WPAI-AQ 是一种可行的有效工具，可用于评估讲波斯语的哮喘患者的工作生产力和活动障碍。
