Mapping the eight-item Parkinson’s Disease Questionnaire (PDQ-8) to the EQ-5D utility index

Cheung, Yin Bun; Tan, Louis C.S.; Lau, Puay-Ngoh; Au, Wing Lok; Luo, Nan

doi:10.1007/s11136-008-9392-8

Cited by 40 publications

(43 citation statements)

References 26 publications

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“…Example: ''The purpose of the current study was to develop an algorithm for generating the EQ-5D health utility index from the PDQ-8, so that a costutility analysis is possible when health outcomes were assessed only by the PDQ-8 or PDQ-39 in studies of PD'' [20].…”

Section: Item 4: Study Objectivementioning

confidence: 99%

The MAPS Reporting Statement for Studies Mapping onto Generic Preference-Based Outcome Measures: Explanation and Elaboration

et al. 2015

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Background The process of ''mapping'' is increasingly being used to predict health utilities, for application within health economic evaluations, using data on other indicators or measures of health. Guidance for the reporting of mapping studies is currently lacking. Objective The overall objective of this research was to develop a checklist of essential items, which authors should consider when reporting mapping studies. The MAPS (MApping onto Preference-based measures reporting Standards) statement is a checklist, which aims to promote complete and transparent reporting by researchers. This paper provides a detailed explanation and elaboration of the items contained within the MAPS statement. Methods In the absence of previously published reporting checklists or reporting guidance documents, a de novo list of reporting items and accompanying explanations was created. A two-round, modified Delphi survey, with representatives from academia, consultancy, health technology assessment agencies and the biomedical journal editorial community, was used to identify a list of essential reporting items from this larger list. Results From the initial de novo list of 29 candidate items, a set of 23 essential reporting items was developed. The items are presented numerically and categorised within six sections, namely, (i) title and abstract, (ii) introduction, (iii) methods, (iv) results, (v) discussion and (vi) other. For each item, we summarise the recommendation, illustrate it using an exemplar of good reporting practice identified from the published literature, and provide a detailed explanation to accompany the recommendation. Conclusions It is anticipated that the MAPS statement will promote clarity, transparency and completeness of reporting of mapping studies. It is targeted at researchers developing mapping algorithms, peer reviewers and editors involved in the manuscript review process for mapping studies, and the funders of the research. The MAPS working group plans to assess the need for an update of the reporting checklist in 5 years' time. Each of the 23 items contained within the MAPS reporting statement is illustrated with an exemplar of good reporting practice identified from the published literature. In addition, a detailed explanation and elaboration is provided for each of the 23 reporting items.It is anticipated that the MAPS reporting statement will promote clarity, transparency and completeness of reporting of mapping studies.

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Section: Item 4: Study Objectivementioning

confidence: 99%

The MAPS Reporting Statement for Studies Mapping onto Generic Preference-Based Outcome Measures: Explanation and Elaboration

et al. 2015

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“…Uzun yıllar boyunca yapılmış olan etkinlik çalışmalarından elde edilmiş olan hastalığa-özgü ölçümlerin, günümüzde ekonomik analizler için yeniden kullanılabileceği düşünülmüştür. Bu noktadan yola çıkarak, kanser, koroner kalp hastalığı, Parkinson hastalığı ve inflamatuvar barsak hastalığı gibi çok farklı hastalık gruplarında, hastalığa-özgü ölçeklerin EQ-5D ile eşleştirilmesi için çeşitli modeller geliştirilmiştir (17)(18)(19)(20)(21). Yakın zaman içerisinde, KİS hastalıklarından diz osteoartriti için de benzer çalışmalar yapılmıştır.…”

Section: Discussionunclassified

Fizik Tedavi Programlarının Ağrı ve Hayat Kalitesi Üzerine Etkisi

...

2012

Tftr

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ÖzetAmaç: Kas iskelet sistemi (KİS) hastalıkları bireylerin yaşam kalitesini olumsuz etkileyen ve sağlık harcamalarına ciddi yük oluşturan önemli bir sağlık sorunudur. Bu çalışmanın amacı çeşitli KİS patolojilerinin tedavisinde kullanılan fizik tedavi programlarının ağrı ve hayat kalitesi üzerine etkisini araştırmaktır. Gereç ve Yöntem: Çalışmaya boyun, omuz, diz ve bel bölgesine yönelik fizik tedavi programı uygulanmış olan toplam 160 hasta dahil edildi. Hastaların yaşı, cinsiyeti, hastalara önerilen fizik tedavi modalitelerinin ve egzersizin türü kaydedildi. Tedavi öncesi ve sonrası hastalardan ağrı ve hayat kalitelerindeki değişimi değerlendirmek amacıyla sırasıyla vizüel analog skalayı (VAS) ve EuroQoL-5D (EQ-5D) ölçeğini yanıtlamaları istendi. Bulgular: Hastaların ortalama yaşı 51,8±13,2 (21-85) yıldı. Yüzeyel ısıtıcılardan hotpack, derin ısıtıcılardan ultrason, analjezik akımlardan ise TENS en sık kullanılan modalitelerdi. Hastalara en sık güçlendirme egzersizleri, çok daha az sıklıkla eklem hareket açıklığı ve germe egzersizleri önerilmişti. Hastaların tedavi öncesi VAS skoru 6,7±2,1 (0-10) ve EQ-5D skoru 0,30±0,34 (-0,43-0,90) iken fizik tedavi sonrasında bu değerler sırasıyla 4,3±2,5 (0-10) ve 0,59±0,28 (-0,69-1,00) olarak belirlendi. Kadınlarda erkeklere oranla ağrı şiddeti tedavi öncesi (p=0,022) ve sonrası (p<0,001) daha yüksek, hayat kalitesi daha kötüydü (p<0,001). Her iki cinste de fizik tedavi uygulamaları ile istatistiksel olarak anlamlı düzeyde ağrıda azalma ve hayat kalitesinde düzelme sağlandığı gözlendi (p<0,001). Sonuç: KİS hastalıklarının tedavisinde sıklıkla uygulanmakta olan fizik tedavi programları hastaların bölgesel ağrılarını azalmakta ve hayat kalitelerini arttırmaktadır. Türk Fiz T›p Re hab Derg 2012;58:99-102. Anah tar Ke li me ler: Fizik tedavi, ağrı, hayat kalitesi, EQ-5D Sum maryObjective: Musculoskeletal system (MSS) diseases comprise a major health problem with negative impact on quality of life of individuals and considerable burden on health care systems. The aim of the study was to investigate the effect of physical therapy programs used in the treatment of various MSS disorders on the patients' pain and quality of life. Materials and Methods: 160 patients, who participated in a physical therapy program for their neck, shoulder, knee or low back pain, were included in the study. The patients' age, sex, and the type of the prescribed physical therapy modality and exercise were recorded. Before and after the treatment, in order to evaluate the change in the severity of pain and quality of life, the patients were respectively asked to complete the visual analog scale (VAS) and EuroQoL-5D (EQ-5D) measure. Results: The mean age of the patients was 51.8±13.2 (21-85) years. The most commonly used modalities were hot packs among superficial heaters, ultrasound among deep heaters and TENS among analgesic currents. Whereas the most frequently prescribed exercises were strengthening exercises, stretching and range of motion exercises were rarely recommended. The average pre-treatment...

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“…For comparison, we adopt the two OLS mapping functions proposed by Cheung et al 15 In the ¯rst one (OLS-1), the EQ-5D utility index is estimated by:…”

Section: Comparing Methodsmentioning

confidence: 99%

“…For instance, several studies have been proposed to map the EQ-5D utility score from the Health Surveys SF-12 8,[11][12][13] and SF-36. 14 Moreover, in a more related work, Cheung et al 15 developed several functions for generating the EQ-5D utility index from PDQ-8.…”

Section: Introductionmentioning

confidence: 99%

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Predicting the Eq-5d From the Parkinson's Disease Questionnaire PDQ-8 Using Multi-Dimensional Bayesian Network Classifiers

Borchani

Bielza

Martinez‐Martín

et al. 2014

Biomed. Eng. Appl. Basis Commun.

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The impact of the Parkinson's disease and its treatment on the patients' health-related quality of life can be estimated either by means of generic measures such as the european quality of Life-5 Dimensions (EQ-5D) or speci¯c measures such as the 8-item Parkinson's disease questionnaire . In clinical studies, PDQ-8 could be used in detriment of EQ-5D due to the lack of resources, time or clinical interest in generic measures. Nevertheless, PDQ-8 cannot be applied in cost-e®ectiveness analyses which require generic measures and quantitative utility scores, such as EQ-5D. To deal with this problem, a commonly used solution is the prediction of EQ-5D from PDQ-8. In this paper, we propose a new probabilistic method to predict EQ-5D from PDQ-8 using multi-dimensional Bayesian network classi¯ers. Our approach is evaluated using ¯ve-fold cross-validation experiments carried out on a Parkinson's data set containing 488 patients, and is compared with two additional Bayesian network-based approaches, two commonly used mapping methods namely, ordinary least squares and censored least absolute deviations, and a deterministic model. Experimental results are promising in terms of predictive performance as well as the identi¯cation of dependence relationships among EQ-5D and PDQ-8 items that the mapping approaches are unable to detect.

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Mapping the eight-item Parkinson’s Disease Questionnaire (PDQ-8) to the EQ-5D utility index

Abstract: At the group level, but not at the individual level, the mapping functions can accurately map the PDQ-8 outcomes to the EQ-5D utility index.

Cited by 40 publications

References 26 publications

The MAPS Reporting Statement for Studies Mapping onto Generic Preference-Based Outcome Measures: Explanation and Elaboration

The MAPS Reporting Statement for Studies Mapping onto Generic Preference-Based Outcome Measures: Explanation and Elaboration

Fizik Tedavi Programlarının Ağrı ve Hayat Kalitesi Üzerine Etkisi

Predicting the Eq-5d From the Parkinson's Disease Questionnaire PDQ-8 Using Multi-Dimensional Bayesian Network Classifiers

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