Research Article

Genetic Diversity of Mycobacterium tuberculosis Complex Isolated from Tuberculosis Patients in Bahir Dar City and Its Surroundings, Northwest Ethiopia

Table 1

Demographic and clinical characteristics of the study subjects and their association with spoligotype clustering and major lineages ().

CharacteristicsNumber of isolates, (%)Number of isolates clustered versus unique onesMajor lineages by CBN
ClusteredUniqueClustering rate valueEAEAIIOMAMB value

Patient origin (zonal) 0.502 0.822
 North Gondar2 (1.19)110.611000
 South Gondar57 (33.9)292817.32718372
 East Gojjam24 (14.3)12127.14139110
 West Gojjam43 (25.6)291417.31918060
 Bahir Dar Special20 (11.9)1377.74154010
 Awi20 (11.9)1287.14107210
 North Wollo2 (1.19)201.1911000
Age (years) 0.181 0.277
 18–28 83 (49.4)47362843300100
 29–39 41 (24.4)281316.71916231
 40–50 20 (11.9)1377.74134210
 >5024 (14.3)10145.95118221
Sex 0.175 0.674
 Male 80 (47.6)512930.44127390
 Female88 (52.4)4741284531372
Household size 0.855 0.876
4 85 (50.6)493629.24231291
 >4 83 (49.4)493429.24427471
TB category 0.943 0.93
 Retreatment26 (15.5)15118.93158120
 New142 (84.5)835949.471505142
Family TB history 0.266 0.758
 Yes 46 (27.4)301617.92614150
 No122 (72.6)685440.560445112
Clinical presentation 0.867 0.16
 EPTB114 (67.9)674739.953436102
 PTB54 (32.1)312318.53315060
Total168 (100)987058.388586162

EA: Euro-American; EAI: East-African Indian; IO: Indo-Oceanic; MA: M. africanum; MB: M. bovis; CBN: conformal Bayesian network; values were presented at 95% confidence interval and considered statistically significant.