Annual risk of tuberculous infection in Khammam a tribal district of Andhra Pradesh.
Artigo
em Inglês
| IMSEAR
| ID: sea-112075
ABSTRACT
A tuberculin survey to estimate annual risk of tuberculosis was conducted in Khammam tribal district during 2001-2002. A total of 8637 children were test-read--2991 without BCG scar and 5442 with BCG scar. The tests were performed using ITU PPD RT23 and the maximum size of induration was recorded at about 72 hours after the test. Based on the frequency distribution of reaction size, cut-off point for infection with tubercle bacilli was considered at 12 mm. Using this criterion, the prevalence of infection was estimated at 11.8% among children without BCG scar and 10.6% among children with BCG scar. This difference was found to be statistically insignificant. ARTI rates computed from the prevalence estimates among children without and with BCG scar were 1.6% and 1.5% respectively. It was computed as 1.5% from the prevalence in the combined group i.e. irrespective of BCG scar status.
Texto completo:
DisponíveL
Índice:
IMSEAR (Sudeste Asiático)
Assunto principal:
População Rural
/
Tuberculose
/
População Urbana
/
Humanos
/
Teste Tuberculínico
/
Criança
/
Pré-Escolar
/
Prevalência
/
Fatores de Risco
/
Índia
Tipo de estudo:
Estudo de etiologia
/
Estudo de prevalência
/
Fatores de risco
País/Região como assunto:
Ásia
Idioma:
Inglês
Ano de publicação:
2003
Tipo de documento:
Artigo
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