Validación de un instrumento de tamizaje para el estudio de la prevalencia de enfermedades cerebrovasculares en la población chilena / Assessment of a screening instrument to study the prevalence of cerebrovascular diseases in the chilean population
Rev. méd. Chile
;
123(6): 785-92, jun. 1995. tab, ilus
Article
in Spanish
| LILACS
| ID: lil-156952
RESUMO
We assessed a screening instrument, adapted from a model suggested by WHO, aimed to perform population studies on the prevalence of cerebrovascular disease in Chile. Sixty-two subjects, 31 with cerebrovascular diseases and 31 without, were asked about symptoms and requested to do simple movements by trained interviewers. The results of the instrument were compared with a neurological examination performed by two specialists. Global sensitivity and specificity of the instrument, using WHO evaluation criteria, were 100 and 38.7 percent respectively. When three or more symptoms and one positive sign were considered as cutoff points, global specificity increased to 61 percent and sensitivity decreased to 93 percent. It is concluded that the present instrument is highly sensitive but lacks specificity
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Index:
LILACS (Americas)
Main subject:
Cerebrovascular Disorders
Type of study:
Diagnostic study
/
Observational study
/
Prevalence study
/
Prognostic study
/
Risk factors
/
Screening study
Limits:
Female
/
Humans
/
Male
Country/Region as subject:
South America
/
Chile
Language:
Spanish
Journal:
Rev. méd. Chile
Journal subject:
Medicine
Year:
1995
Type:
Article
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