Reliability of two commercial serological kits for serodiagnosing Helicobacter pylori infection.
Southeast Asian J Trop Med Public Health
;
1994 Jun; 25(2): 316-20
Artigo
em Inglês
| IMSEAR
| ID: sea-31957
ABSTRACT
Two commercial serological kits, Pylori-set (Orion Diagnostica, Finland) and Helico-G (Cambridge Biomedical Ltd, UK), and an in-house ELISA were evaluated with sera from 24 Helicobacter pylori-positive and 146 H. pylori-negative dyspeptic patients. Sensitivity, specificity, positive and negative predictive values of Pylori-set were lower than that of Helico-G and in-house ELISA. Helico-G was more sensitive (91.7%) than in-house ELISA (83.3%) and both had comparable negative predictive values of 98.3% and 97.3%, respectively. However, specificity (97.9%) and positive predictive value (86.9%) of an in-house ELISA were much higher than specificity (80.1%) and positive predictive value (43.1%) of Helico-G. Kappa index of agreement between the three serological tests (Pylori-set, Helico-G or in-house ELISA) and the presence of H. pylori in antral biopsies was very low (k = 0.13; z = 1.9; p > 0.05), moderate (k = 0.49; z = 7.1; p < 0.0001), or substantial (k = 0.82; z = 10.8; p < 0.0001), respectively. Overall, statistical evaluations demonstrated that both commercial kits were not as reliable as the in-house ELISA for serodiagnosing H. pylori infection.
Texto completo:
DisponíveL
Índice:
IMSEAR (Sudeste Asiático)
Assunto principal:
Antro Pilórico
/
Kit de Reagentes para Diagnóstico
/
Biópsia
/
Idoso de 80 Anos ou mais
/
Idoso
/
Feminino
/
Humanos
/
Masculino
/
Testes Sorológicos
/
Reprodutibilidade dos Testes
Tipo de estudo:
Estudo diagnóstico
/
Estudo prognóstico
Limite:
Aged80
Idioma:
Inglês
Revista:
Southeast Asian J Trop Med Public Health
Ano de publicação:
1994
Tipo de documento:
Artigo
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