Sintomatología y factores epidemiológicos asociados al parasitismo por blastocystis hominis / Simtomatology and epidemiological factors associated with blastocystis hominis infection
Parasitol. latinoam
;
57(3/4): 96-102, jul.-dic. 2002. tab
Article
in Spanish
| LILACS
| ID: lil-342250
RESUMEN
To contribute to the knowledge of symptoms and factors associated with the infection by Blastocystis hominis of patients attending the outpatient clinic of the Department of Enfermedades Transmisibles y Dermatológicas (DETD) of the Hospital Nacional Cayetano Heredia. A prospective case-control study was carried out from January to March 1999, in patients between the ages of 5 to 80 years. The case-patients had a positive stool examination for B. hominis (in the absence of other pathogens such helminths) done at the laboratory of Tropical Medicine. The controls had at least 2 of 3 negative fecal samples of B. hominis, in absence of other pathogens. The presence of B. hominis was examined under direct microscopy (high-power field x 400) and it was rated from 1 plus to 4 plus according to the quantity of parasites present. Epidemiological data, symptomatology and the factors associated with infection in each patient were registered A total of 144 persons (74 cases and 70 controls) matched by age and sex were included in the study. A significant statistical correlation (p < 0.05) was found between the presence of B. hominis and the presence of symptoms (91.9 percent). The predominant symptoms in order of significance (p < 0.05), associated to the infection by B. hominis were abdominal pain (OR = 3) 1.47 < OR < 6.60, abdominal distention (OR = 2.36) 1.06 < OR < 5.29, urticaria (OR = 3.19) 0.81 < OR < 12.48. The only risk factor found associated with the infection with B. hominis, was the consumption of raw unboiled water (OR = 2.52) 1.01 < OR < 5.83
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Blastocystis Infections
/
Blastocystis hominis
Type of study:
Diagnostic study
/
Observational study
/
Risk factors
Limits:
Adolescent
/
Adult
/
Child, preschool
/
Female
/
Humans
/
Male
Language:
Spanish
Journal:
Parasitol. latinoam
Journal subject:
Parasitology
Year:
2002
Type:
Article
Affiliation country:
Peru
Institution/Affiliation country:
Universidad Peruana Cayetano Heredia/PE
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