Prevalence of dementia in Latin America, India, and China: a population-based cross-sectional survey
Fecha
2008-06Autor
Llibre Rodriguez, Juan J
P Ferri, Cleusa
Acosta, Daisy
Guerra, Mariella
Huang, Yueqin
Jacob, K S
Krishnamoorthy, E S
Salas, Aquiles
Sosa, Ana Luisa
Acosta, Isaac
Dewey, Michael E
Gaona, Ciro
Jotheeswaran, A T
Li, Shuran
Rodriguez, Diana
Rodríguez, Guillermina
Kumar, P Senthil
Valhuerdi, Adolfo
Prince, Martin
Metadatos
Mostrar el registro completo del ítemResumen
Studies have suggested that the prevalence of dementia is lower in developing than in developed regions.
We investigated the prevalence and severity of dementia in sites in low-income and middle-income countries
according to two defi nitions of dementia diagnosis.We undertook one-phase cross-sectional surveys of all residents aged 65 years and older (n=14 960) in 11 sites in seven low-income and middle-income countries (China, India, Cuba, Dominican Republic, Venezuela, Mexico, and Peru). Dementia diagnosis was made according to the culturally and educationally sensitive 10/66 dementia diagnostic algorithm, which had been prevalidated in 25 Latin American, Asian, and African centres; and by
computerised application of the dementia criterion from the Diagnostic and Statistical Manual of Mental Disorders
(DSM IV). We also compared prevalence of DSM-IV dementia in each of the study sites with that from estimates in
European studies. Findings The prevalence of DSM-IV dementia varied widely, from 0·3% (95% CI 0·1–0·5) in rural India to 6·3%
(5·0–7·7) in Cuba. After standardisation for age and sex, DSM-IV prevalence in urban Latin American sites was
four-fi fths of that in Europe (standardised morbidity ratio 80 [95% CI 70–91]), but in China the prevalence was only
half (56 [32–91] in rural China), and in India and rural Latin America a quarter or less of the European prevalence
(18 [5–34] in rural India). 10/66 dementia prevalence was higher than that of DSM-IV dementia, and more consistent
across sites, varying between 5·6% (95% CI 4·2–7·0) in rural China and 11·7% (10·3–13·1) in the Dominican
Republic. The validity of the 847 of 1345 cases of 10/66 dementia not confi rmed by DSM-IV was supported by high
levels of associated disability (mean WHO Disability Assessment Schedule II score 33·7 [SD 28·6]).
Interpretation As compared with the 10/66 dementia algorithm, the DSM-IV dementia criterion might underestimate
dementia prevalence, especially in regions with low awareness of this emerging public-health problem.
Colecciones
El ítem tiene asociados los siguientes ficheros de licencia: