Epidemiology of Schistosoma mansoni infection in a low-endemic area in Brazil: clinical and nutritional characteristics
Rev. Inst. Med. Trop. Säo Paulo
;
34(5): 409-19, set.-out. 1992. tab, graf
Artículo
en Inglés
| LILACS
| ID: lil-134539
ABSTRACT
A cross-sectional case-control study designed to evaluate the role of malnutrition in the association between the intensity of Schistosoma mansoni infection and clinical schistosomiasis, was conducted in an area with both low frequency of infection and low morbidity of schistosomiasis in Brazil. Cases (256) were patients with a positive stool examination for S. mansoni; their geometrical mean number of eggs/gram of feces was 90. Controls (256) were a random sample of the negative participants paired to the cases by age, sex and length of residence in the area. The clinical signs and symptoms found to be associated with S. mansoni infection, comparing cases and controls, were blood in stools and presence of a palpable liver. A linear trend in the relative odds of these signs and symptoms with increasing levels of infection was detected. Adjusting by the level of egg excretion, the existence of an interaction between palpable liver and ethnic group (white) was suggested. No differences in the nutritional status of infected and non-infected participants were found
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Esquistosomiasis mansoni
/
Reservorios de Enfermedades
Tipo de estudio:
Estudio diagnóstico
/
Estudio de etiología
/
Estudio de incidencia
/
Estudio observacional
/
Estudio de prevalencia
/
Estudio pronóstico
/
Factores de riesgo
/
Estudio de tamizaje
Límite:
Animales
/
Femenino
/
Humanos
/
Masculino
País/Región como asunto:
America del Sur
/
Brasil
Idioma:
Inglés
Revista:
Rev. Inst. Med. Trop. Säo Paulo
Asunto de la revista:
Medicina Tropical
Año:
1992
Tipo del documento:
Artículo
Similares
MEDLINE
...
LILACS
LIS