Page 13 - Epidemiological studies on tuberculosis control and respiratory viruses

West-African
Ural
EAI
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VNTR clustering in relation to the M. tuberculosis population
Haarlem
Bovis
TUR
Remaining (<15)
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Uganda
CAS
Beijing
New-1
Cameroon
European
Figure 1. Identification of clonal complexes in the total study population in a minimum-spanning tree
Patient factors significantly associated with VNTR clustering in the whole study population, using identical profiles as a cluster definition, were analyzed. As observed in previous studies (17, 18), we found male sex, young age, urban residence, having pulmonary tuberculosis, and no previous treatment for tuberculosis as significant risk factors for clustering. All risk factors became less strongly associated when analyses was restricted to cases caused by non-Euro-American lineages (Table 2). Only age (<30 and 55 to 70 years) and having pulmonary tuberculosis remained significantly associated with clustering.
LAM
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