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Article
Measurement invariance and general population reference values of the PROMIS Profile 29 in the UK, France, and Germany
Comparability of patient-reported outcome measures over different languages is essential to allow cross-national research. We investigate the comparability of the PROMIS Profile 29, a generic health-related qu...
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Article
Open AccessThe case for an international patient-reported outcomes measurement information system (PROMIS®) initiative
Patient-reported outcomes (PROs) play an increasingly important role in clinical practice and research. Modern psychometric methods such as item response theory (IRT) enable the creation of item banks that sup...
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Article
Open AccessSpatio-temporal Rasch analysis of quality of life outcomes in the French general population. Measurement invariance and group comparisons
This study aims at analyzing Health related quality of life (HRQoL) data on the French general population between 1995 and 2003 using an Item Response Theory (IRT) model.
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Article
Missing data methods for dealing with missing items in quality of life questionnaires. A comparison by simulation of personal mean score, full information maximum likelihood, multiple imputation, and hot deck techniques applied to the SF-36 in the French 2003 decennial health survey
Missing items are common in quality of life (QoL) questionnaires and present a challenge for research in this field. It remains unclear which of the various methods proposed to deal with missing data performs ...
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Article
Open AccessThe impact of herpes zoster and post-herpetic neuralgia on quality-of-life
The potentially serious nature of herpes zoster (HZ) and the long-term complication post-herpetic neuralgia (PHN) are often underestimated. One in four people will contract herpes zoster in their lifetime, wit...
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Article
Open AccessIdentifying type and determinants of missing items in quality of life questionnaires: Application to the SF-36 French version of the 2003 Decennial Health Survey
Missing items are common in quality of life (QoL) questionnaires and present a challenge for research in this field. The development of sound strategies of replacement and prevention requires accurate knowledg...
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Article
Open AccessQuality of life in patients aged 80 or over after ICU discharge
Our objective was to describe self-sufficiency and quality of life one year after intensive care unit (ICU) discharge of patients aged 80 years or over.
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Article
A New Condition Specific Quality of Life Measure for the Blind and the Partially Sighted in Sub-Saharan Africa, the IOTAQOL : Methodological Aspects of the Development Procedure
In Mali, blind and partially sighted people represent 1.2% of the population. Good quality and low cost ophthalmologic care is available, but, unfortunately, is insufficiently taken advantage of. In order to c...
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Article
Methodological issues in determining the dimensionality of composite health measures using principal component analysis: Case illustration and suggestions for practice
During the early steps of the construction of composite health measures, principal component analysis (PCA) is commonly used to identify ‘latent’ factors that underlie observed variables and to determine the d...
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Article
Health-related quality of life associated with chronic conditions in eight countries: Results from the International Quality of Life Assessment (IQOLA) Project
Context: Few studies and no international comparisons have examined the impact of multiple chronic conditions on populations using a comprehensive health-related quality of life (HRQL) questionnaire. Objective: ...
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Article
Menopause and quality of life
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Article
Recurrent genital herpes and quality of life in France
Recurrent genital herpes is an incurable disease that may give rise to considerable psychological disturbance. This paper describes the impact of the disease on quality of life in a French population. The popu...
