Decrease in risk of tuberculosis infection despite increase in tuberculosis among young adults in urban Vietnam.
Int J Tuberc Lung Dis
; 14(3): 289-95, 2010 Mar.
Article
em En
| MEDLINE
| ID: mdl-20132619
ABSTRACT
OBJECTIVE:
To assess whether the increase in tuberculosis (TB) notification rates among young adults in Vietnam reflects increased transmission in the population at large.METHOD:
Trends of case notification rates of new smear-positive TB were calculated from routinely reported data of district TB units over the period 1996-2005. Results from repeated tuberculin surveys among children aged 6-9 years were obtained to calculate the trend in annual risk of TB infection (ARTI).FINDINGS:
From 1996 to 2006, notification rates in the age group 15-24 years increased by 4.3% per year, and more so in highly urbanised (6.7%) than in rural districts (1.7%). The ARTI in urban districts declined from 2.4% in 1992 to 1.2% in 1998 and 0.9% in 2005. In rural districts, the ARTI increased from 0.7% in 1991 to 1.2% in 1997, and then declined to 0.9% in 2006.CONCLUSION:
The increase in TB notification rates among young adults in Ho Chi Minh Province is accompanied by a decrease in ARTI in children. This suggests that the trend in TB notification among young adults reflects increased rates of progression from infection to disease and/or increased transmission within this age group, rather than increased transmission in the population at large.
Buscar no Google
Coleções:
01-internacional
Contexto em Saúde:
1_ASSA2030
/
2_ODS3
/
3_ND
/
4_TD
Base de dados:
MEDLINE
Assunto principal:
Tuberculose Pulmonar
/
Saúde da População Urbana
Tipo de estudo:
Etiology_studies
/
Risk_factors_studies
Limite:
Adolescent
/
Adult
/
Child
/
Female
/
Humans
/
Male
País/Região como assunto:
Asia
Idioma:
En
Revista:
Int J Tuberc Lung Dis
Ano de publicação:
2010
Tipo de documento:
Article