Measuring disability across cultures — the psychometric properties of the WHODAS II in older people from seven low‐ and middle‐income countries. The 10/66 Dementia Research Group population‐based survey

Sousa, Renata M; Dewey, Michael; Acosta, Daisy; Jotheeswaran, AT; Castro-Costa, Érico; Ferri, Cleusa P.; Guerra, Mariella; Huang, Yueqin; Jacob, K. S.; Pichardo, Juana Guillermina Rodriguez; Ramírez, Nayeli García; Rodriguez, Juan J. Llibre; Rodríguez, Marina Calvo; Salas, Aquiles; Sosa, Ana Luisa; Williams, Joseph; Prince, Martin

doi:10.1002/mpr.299

Cited by 105 publications

(107 citation statements)

References 34 publications

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“…The confirmation of unidimensionality is consistent with Luciano et al [13] who analysed data of Spanish patients with major depression using exploratory principal component and subsequent confirmatory factor analysis. Sousa et al [12] examined unidimensionality of the WHODAS 2.0 in elderly people living in seven low-and middle-income countries and showed that principle component analysis gave rise to a one-factor solution in most countries. In the study from Andrews et al [11] a second-order one-factor solution with six first-order factors was the best-fitting model for the Australian general population.…”

Section: Discussionmentioning

confidence: 99%

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Feasibility and psychometric properties of the German 12-item WHO Disability Assessment Schedule (WHODAS 2.0) in a population-based sample of patients with myocardial infarction from the MONICA/KORA myocardial infarction registry

Kirchberger

Braitmayer

Coenen

et al. 2014

Popul Health Metrics

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Background: The World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0) provides a standardized assessment of functioning and disability in individuals with any kind of disease. So far, data on feasibility and psychometric properties of the 12-item WHODAS 2.0 in patients with acute myocardial infarction (AMI) are not available. Thus, the objective of this study was to investigate feasibility and psychometric properties of this questionnaire in a population-based sample of persons with AMI. Methods: The sample consisted of 2077 persons (age 35-85 years) with AMI from the population-based MONICA/KORA Myocardial Infarction Registry, Augsburg, Germany, who responded to a postal follow-up survey in 2011. Feasibility was assessed by the number of missing WHODAS 2.0 items and analyzed using multivariate logistic regression modeling. Psychometric properties were determined using Rasch analysis. It included testing of unidimensionality, monotonicity and local independency, Partial Credit Model (PCM) fitting, and testing for Differential Item Functioning (DIF). Concurrent validity was tested by a linear additive model predicting the WHODAS disability score based on a number of independent variables.

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Section: Discussionmentioning

confidence: 99%

“…Moreover, in contrast to the 36-item WHODAS, for the 12-item form studies on its psychometric properties are scarce so far. The available studies are limited to the general population [11], older people [12], and patients with depression [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Feasibility and psychometric properties of the German 12-item WHO Disability Assessment Schedule (WHODAS 2.0) in a population-based sample of patients with myocardial infarction from the MONICA/KORA myocardial infarction registry

Kirchberger

Braitmayer

Coenen

et al. 2014

Popul Health Metrics

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“…The self-reported measures were stroke and having three or more limiting physical impairments from the following list : arthritis or rheumatism, eyesight problems, hearing difficulty or deafness, persistent cough, breathlessness, difficulty breathing or asthma, high blood pressure, heart trouble or angina, stomach or intestine problems, faints or blackouts, paralysis, weakness or loss of one leg or arm, skin disorders such as pressure sores, leg ulcers or severe burns (Sousa et al 2010).…”

Section: Other Measuresmentioning

confidence: 99%

“…This scale was developed by the World Health Organization as a cross-cultural and culture-fair assessment tool to use in epidemiological studies. Its psychometric properties have recently been assessed (Sousa et al 2010).…”

Section: Other Measuresmentioning

confidence: 99%

Co-occurrence of anxiety and depression amongst older adults in low- and middle-income countries: findings from the 10/66 study

et al. 2011

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BackgroundThere is relative little information about the prevalence and risk factors of co-morbid anxiety and depression in later life. These disorders are often associated with worse response to treatment than either condition alone, and researching their epidemiology in diverse settings is vital to policy makers. We therefore investigated the co-occurrence of anxiety and depressive syndromes amongst older adults living in developing countries and measured the separate and joint effect of these two disorders on levels of associated disability.MethodThe 10/66 study carried out cross-cultural surveys of all residents aged 65 years or over (n=15021) in 11 sites in seven countries (People's Republic of China, India, Cuba, Dominican Republic, Venezuela, Mexico and Peru). Anxiety was measured by using the Geriatric Mental State Examination and the Automated Geriatric Examination for Computer Assisted Taxonomy diagnostic system. Depression was assessed according to International Classification of Diseases 10th revision (ICD-10) and EURO-D criteria. Disability was measured by using the World Health Organization's Disablement Assessment Scale Version II. Zero-inflated negative binomial regression models were used to investigate the association of common mental disorders and disability.ResultsThe prevalence of co-occurring anxiety and depression (with the exclusion of subthreshold disorders) ranged between 0.9% and 4.2% across sites. Gender, socio-economic status, urbanicity and physical co-morbidities were associated with the different co-morbid states. Having both disorders was linked to higher disability scores than having anxiety or depression alone.ConclusionsGiven the close association of co-morbid anxiety and depression with disability, new policies to improve prevention, recognition and treatment will be needed to adapt to ageing populations and their mental health needs.

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“…The pattern of correlations he found did not offer support for the multidimensionality of the SGRQ. By using a combination of appropriate exploratory and confirmatory, parametric and non-parametric, IRT and factor analytic models, as suggested by several researchers [e.g., 16,18,29,[59][60][61][62], we managed to obtain a comprehensive picture of the psychometric properties of the SGRQ. The results from the MSA, MIRT and confirmatory bifactor analysis suggest that (a shorter version of) the SGRQ can be used to calculate a total (unidimensional) score.…”

Section: Discussionmentioning

confidence: 99%

The St George’s Respiratory Questionnaire revisited: a psychometric evaluation

et al. 2013

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Purpose The St George's Respiratory Questionnaire (SGRQ) has clearly acquired the status of legacy questionnaire for measuring health-related quality of life in patients with chronic obstructive pulmonary disease (COPD). The main aim of this study was to assess the underlying dimensionality of the SGRQ and to investigate the added value of the empirical weights used to calculate total scores. Methods The official Dutch translation of the SGRQ was completed by 444 COPD patients participating in two clinical studies. These data were used for secondary data analysis in this study. Three complementary statistical methods were used to assess dimensionality: Mokken scale analysis (MSA), parametric multidimensional item response theory (IRT) and bifactor analysis. Additionally, the original SGRQ weighting procedure was compared to IRT-based weighting.Results The results of the MSA and multidimensional item response theory (MIRT) pointed toward a unidimensional structure. The bifactor analyses indicated that there was a strong general factor, but the group factors did have additional value. Nineteen items performed poorly in the MSA, MIRT analysis or both. Shortening the scale from 50 to 31 items did not negatively impact measurement precision. SGRQ total score and IRT-derived scores correlated strongly, 0.90 for the one-parameter model and 0.99 for the two-parameter model. Conclusion The SGRQ contains some multidimensionality, but an abbreviated version can be used as a unidimensional tool in patients with COPD. Subscale scores should be used with care. SGRQ total scores correlated highly with IRT-based scores, and thus, the weighting methods may be used interchangeably to calculate total scores.

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Measuring disability across cultures — the psychometric properties of the WHODAS II in older people from seven low‐ and middle‐income countries. The 10/66 Dementia Research Group population‐based survey

Cited by 105 publications

References 34 publications

Feasibility and psychometric properties of the German 12-item WHO Disability Assessment Schedule (WHODAS 2.0) in a population-based sample of patients with myocardial infarction from the MONICA/KORA myocardial infarction registry

Feasibility and psychometric properties of the German 12-item WHO Disability Assessment Schedule (WHODAS 2.0) in a population-based sample of patients with myocardial infarction from the MONICA/KORA myocardial infarction registry

Co-occurrence of anxiety and depression amongst older adults in low- and middle-income countries: findings from the 10/66 study

The St George’s Respiratory Questionnaire revisited: a psychometric evaluation

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