اعتبارسازی زبان‌شناختی پرسشنامه‌ی کیفیت زندگی لوپوس (LupusQol) در بیماران ایرانی فارسی زبان

نوع مقاله : مقاله های پژوهشی

نویسندگان

1 پژوهشگر، مرکز پژوهش‌های دانشجویان پزشکی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

2 دانشیار، گروه بیماری‌های روماتولوژیک، دانشکده‌ی پزشکی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

3 پژوهشگر، مؤسسه‌ی تحقیقاتی پورسینای حکیم، اصفهان، ایران

4 استادیار، گروه بیماری‌های روماتولوژیک، دانشکده‌ی پزشکی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

چکیده

مقدمه: کیفیت زندگی یکی از پیامدهای مورد سنجش و مهم در بیماران مبتلا به بیماری لوپوس است. پرسشنامه‌ی (Lupus quality of life) LupusQol به منظور سنجش کیفیت زندگی این بیماران طراحی شده است. هدف از این مطالعه، اعتبارسازی زبان‌شناختی این پرسشنامه و بررسی خصوصیات سایکومتریک نسخه‌ی فارسی آن در ایران بود.روش‌ها: پرسشنامه‌ی LupusQol به روش استاندارد ترجمه‌ی Forward-backward به زبان فارسی ترجمه شد و پس از تکمیل توسط بیماران مبتلا به لوپوس ویژگی‌های سایکومتریک آن سنجیده شد. جهت بررسی پایایی، Cronbach's alpha کل پرسشنامه و ابعاد آن بررسی شد. جهت بررسی اعتبار ساختار، اعتبار هم‌گرا و اعتبار افتراقی آن مورد سنجش قرار گرفت. همچنین، اعتبار گروه‌های شناخته‌شده با بررسی رابطه‌ی کیفیت زندگی با عواملی نظیر سن، فعالیت جسمی، وجود بیماری‌های همراه، فعالیت بیماری و میزان آسیب بیماری سنجیده شد.یافته‌ها: تعداد 72 بیمار لوپوس با میانگین سنی 2/10 ± 7/36 سال در مطالعه شرکت کردند. Cronbach's alpha کل پرسشنامه 94/0 و برای ابعاد آن از 8/0 تا 94/0 متغیر بود. در تمامی ابعاد پرسشنامه‌ی LupusQol، ضریب همبستگی هر آیتم با حیطه‌ی مربوط به خود بیش از 4/0 بود (اعتبار هم‌گرا). ضریب همبستگی هر آیتم با سایر ابعاد در تمام موارد کمتر از رابطه‌ی آن آیتم با حیطه‌ی مربوط به خود بود (اعتبار افتراقی). بین سن، فعالیت جسمی، تعداد بیماری‌های همراه و آسیب بیماری با بیشتر ابعاد پرسشنامه رابطه‌ی معنی‌داری وجود داشت (ضریب همبستگی 2/0 تا 4/0).نتیجه‌گیری: ویژگی‌های سایکومتریک نسخه‌ی فارسی پرسشنامه‌ی LupusQol در جامعه‌ی ایرانی قابل قبول است و می‌توان از این ابزار جهت سنجش کیفیت زندگی در بیماران مبتلا به لوپوس استفاده کرد.

کلیدواژه‌ها


عنوان مقاله [English]

Evaluating the Validity and Reliability of Persian Version of Lupus Quality of Life (LupusQol) Questionnaire in Iranian Patients

نویسندگان [English]

  • Naeimehossadat Hosseini 1
  • Zahra Sayed Bonakdar 2
  • Ali Gholamrezaei 3
  • Alimohammad Fatemi 4
  • Hadi Karimzadeh 2
1 Research Assistant, Medical Students Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
2 Associate Professor, Department of Rheumatology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
3 Research Assistant, Poursina Hakim Research Institute, Isfahan, Iran
4 Assistant Professor, Department of Rheumatology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
چکیده [English]

Background: Quality of life is of the most important outcomes measured in patients with systemic lupus erythematosus (SLE). The Lupus Quality of Life (LupusQoL) questionnaire is designed to specifically assess quality of life in these patients. This study aimed to evaluate validity and reliability of the Persian version of this questionnaire in Iranian patients.Methods: LupusQol questionnaire was translated to Persian using the standard forward-backward translation method. Patients were asked to fill out the questionnaire. Cronbach`s alpha for the whole questionnaire and its 8 domains was measured. For construct validity, convergent validity and discriminant validity were evaluated. Also, known group validity was assessed by evaluating the correlation between quality of life and factors such as age, physical activity, concomitant diseases, disease activity and damage.Findings: Seventy two patients with SLE with mean age of 36.7 ± 10.2 years were enrolled in this study. Cronbach`s alpha for the questionnaire was 0.94 and varied from 0.8 to 0.94 for the domains. The correlation coefficient of each item with its domain was more than 0.4 in all domains of LupusQol (convergent validity) and was more than the correlation of each item with other domains (discriminant validity). There was a significant correlation between age, physical activity, number of concomitant diseases and disease damage and most of the domains of the questionnaire (Correlation coefficient from 0.2 to 0.4).Conclusion: The psychometric characteristics of the Persian version of LupusQol questionnaire are acceptable in Iranian population and this instrument can be used to evaluate quality of life in patients with SLE.

کلیدواژه‌ها [English]

  • Systemic Lupus Erythematosus
  • Quality of Life
  • Validity
  • Reliability
  • Linguistic validation
  • Iran
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