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Mapping catquest scores onto EQ-5D utility values in patients with cataract disease
المؤلفون المشاركون
Yusufi, Mahmud
Sheikhrobat, Yusuf Behzadi
Najafi, Safa
Ghaffari, Shahram
Memarzadeh, Sayyid Ezatollah
Mahbub Ahari, Alirida
Baruni, Muhsin
Biglu, Muhammad Husayn
Qadiri, Husayn
المصدر
Iranian Red Crescent Medical Journal
العدد
المجلد 18، العدد 3 (31 مارس/آذار 2016)، ص ص. 1-6، 6ص.
الناشر
تاريخ النشر
2016-03-31
دولة النشر
الإمارات العربية المتحدة
عدد الصفحات
6
التخصصات الرئيسية
الموضوعات
- التاريخ الاجتماعي
- نوعية الحياة
- التاريخ الاقتصادي
- الحياة
- علم البيئة البشرية
- المؤشرات الصحية
- إيران
- المحاسبة الاجتماعية
- التشخيص
الملخص EN
Background : Mapping from non-performance-based measures onto generic performance-based measures provides an appropriate solution to derive utilities to be used in economic evaluations.
Objectives : This study aimed to create a model through which EQ-5D utilities for cataracts can be obtained from scores on the disease-specific Catquest measure.
Patients and Methods : One hundred ninety-nine observations from 103 patients who self-administered the EQ-5D, the Catquest and questions on demographic and clinical characteristics were included in the analysis.
Data was divided into estimation and validation datasets.
To predict EQ-5D utilities, multiple regression analysis, using the Ordinary Least Square (OLS) and the censored least absolute deviation (CLAD), was performed.
Catquest scores, age, gender, and performing surgery were included as explanatory variables.
An estimation dataset was used to derive the coefficients, and these coefficients were then validated using a validation dataset.
Based on the explanatory power, the consistency, the simplicity, the mean absolute error (MAE) and the correlations between observed and fitted utilities, the most appropriate model was selected.
Results : The mean EQ-5D and Catquest scores of the total sample were 0.631 and 15.8, respectively.
Age and surgery showed no significant effect for either method.
Removing age and surgery, model II was built and given an R2 of 0.697, an MAE of 0.1176 for the OLS and an R2 of 0.614, and an MAE of 0.1153 for the CLAD method.
In the validation stage, the CLAD revealed better prediction ability, with an MAE of 0.198 versus an MAE of 0.209 for the OLS.
ICC and Bland-Altman analysis put the CLAD as a preferred method with the following equation: Utilities (EQ-5D) = 0.988 - 0.0281 × Catquest (PD) + 0.102 × gender (male = 1).
Conclusions : Based on these results, a mapping function was obtained which appears to be valuable in predicting EQ-5D utilities from Catquest scores.
This function gives an appropriate solution to estimate utilities when primary EQ-5D data is not available.
Although the model represents good consistency and predictive ability, further examination of obtained function is required with large samples.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Yusufi, Mahmud& Sheikhrobat, Yusuf Behzadi& Najafi, Safa& Ghaffari, Shahram& Memarzadeh, Sayyid Ezatollah& Qadiri, Husayn…[et al.]. 2016. Mapping catquest scores onto EQ-5D utility values in patients with cataract disease. Iranian Red Crescent Medical Journal،Vol. 18, no. 3, pp.1-6.
https://search.emarefa.net/detail/BIM-679128
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Qadiri, Husayn…[et al.]. Mapping catquest scores onto EQ-5D utility values in patients with cataract disease. Iranian Red Crescent Medical Journal Vol. 18, no. 3 (Mar. 2016), pp.1-6.
https://search.emarefa.net/detail/BIM-679128
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Yusufi, Mahmud& Sheikhrobat, Yusuf Behzadi& Najafi, Safa& Ghaffari, Shahram& Memarzadeh, Sayyid Ezatollah& Qadiri, Husayn…[et al.]. Mapping catquest scores onto EQ-5D utility values in patients with cataract disease. Iranian Red Crescent Medical Journal. 2016. Vol. 18, no. 3, pp.1-6.
https://search.emarefa.net/detail/BIM-679128
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 6
رقم السجل
BIM-679128
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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