OBJECTIVE: To analyse the spatial distribution of TB in Antananarivo and investigate risk factors. METHODS: Pulmonary TB data were collected through passive case detection in 16 Tuberculosis Diagnostic and Treatment Centers (DTC). New cases listed in the DTC registers from 2004 to 2006 and resident in Antananarivo were included in the study. Field workers of the national control program conducted household surveys of all cases to collect complementary information on socio-economic status. TB spatial organization and risk factors were analysed over two successive periods (August 2004-July 2005, August 2005-July 2006); analysis was done at the neighbourhood level, by searching for spatial clusters with the spatial scan test. RESULTS: 3075 pulmonary tuberculosis new cases were reported in Antananarivo from 2004 to 2006. The average incidence during the study period was 74/100,000 inhabitants (95% CI: 64.9-84.5). Spatial clusters occurred in three of the six arrondissements (districts) of the city (192 neighbourhoods). A decrease in clustering was observed with movement towards the southern neighbourhood. CONCLUSION: The change in risk of a TB cluster was linked to socio-economic (e.g. household amount of ownership of tap water) and patient care factors (e.g. patients lost to follow-up).
OBJECTIVE: To analyse the spatial distribution of TB in Antananarivo and investigate risk factors. METHODS: Pulmonary TB data were collected through passive case detection in 16 Tuberculosis Diagnostic and Treatment Centers (DTC). New cases listed in the DTC registers from 2004 to 2006 and resident in Antananarivo were included in the study. Field workers of the national control program conducted household surveys of all cases to collect complementary information on socio-economic status. TB spatial organization and risk factors were analysed over two successive periods (August 2004-July 2005, August 2005-July 2006); analysis was done at the neighbourhood level, by searching for spatial clusters with the spatial scan test. RESULTS: 3075 pulmonary tuberculosis new cases were reported in Antananarivo from 2004 to 2006. The average incidence during the study period was 74/100,000 inhabitants (95% CI: 64.9-84.5). Spatial clusters occurred in three of the six arrondissements (districts) of the city (192 neighbourhoods). A decrease in clustering was observed with movement towards the southern neighbourhood. CONCLUSION: The change in risk of a TB cluster was linked to socio-economic (e.g. household amount of ownership of tap water) and patient care factors (e.g. patients lost to follow-up).
Authors: H Lin; S Shin; J A Blaya; Z Zhang; P Cegielski; C Contreras; L Asencios; C Bonilla; J Bayona; C J Paciorek; T Cohen Journal: Epidemiol Infect Date: 2010-12-23 Impact factor: 2.451
Authors: M L Peterson; N R Gandhi; J Clennon; K N Nelson; N Morris; N Ismail; S Allana; A Campbell; J C M Brust; S C Auld; B Mathema; K Mlisana; P Moodley; N S Shah Journal: Int J Tuberc Lung Dis Date: 2019-06-01 Impact factor: 2.373
Authors: Neela D Goswami; Emily J Hecker; Carter Vickery; Marshall A Ahearn; Gary M Cox; David P Holland; Susanna Naggie; Carla Piedrahita; Ann Mosher; Yvonne Torres; Brianna L Norton; Sujit Suchindran; Paul H Park; Debbie Turner; Jason E Stout Journal: PLoS One Date: 2012-10-02 Impact factor: 3.240
Authors: Wenyi Sun; Jianhua Gong; Jieping Zhou; Yanlin Zhao; Junxiang Tan; Abdoul Nasser Ibrahim; Yang Zhou Journal: Int J Environ Res Public Health Date: 2015-01-27 Impact factor: 3.390