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Table 2 Multivariate logistic regression analysis of risk factors associated with clustering

From: Conventional and molecular epidemiology of Tuberculosis in Manitoba

Characteristic Incidence Clustered Non-Clustered (unique) Odds Ratio p value
  (person-year/100 000) n = 426 (%) n = 203 (%) (95%) CI  
Sex      
Female 8.4 167 (39.2) 102 (50.2) 1 (reference)  
Male 10.1 259 (60.8) 101 (49.8) 1.959 (1.306–2.938) 0.0011
Age *      
0 to 14 3.1 18 (4.2) 4 (2.0) 2.55 (0.74–8.88) 0.1401
15 to 24 5.8 51 (12.0) 17 (8.4) 2.53 (1.20–5.34) 0.0151
25 to 44 10.4 170 (39.9) 47 (23.1) 3.26 (1.92–5.54) 0.0000
45 to 64 10.7 102 (23.9) 48 (23.6) 1.47 (0.87–2.50) 0.1523
65 + 18.4 85 (20.0) 87 (42.9) 1  
Origin      
Canadian-Born (non-treaty) 3.3 97 (22.8) 60 (29.6) 1  
Canadian-Born (treaty) 48.4 254 (59.6) 27 (13.3) 4.108 (2.163–7.803) 0.0000
Foreign-Born 20.0 75 (17.6) 116 (57.1) 0.248 (0.149–0.412) 0.0000
Residence      
Winnipeg 9.7 235 (55.1) 153 (75.4) 1  
other urban 4.1 14 (3.3) 11 (5.4) 0.490 (0.195–1.230) 0.1289
reserves 33.7 148 (34.7) 15 (7.4) 1.206 (0.546–2.665) 0.6433
other rural 9.2 29 (6.9) 24 (11.8) 0.410 (0.203–0.830) 0.0132
  1. * age overall effect, χ2 test = 21.83 with 4 different factors, p < 0.001 origin overall effect, χ2 test = 81.54 with 2 different factors, p < 0.001 residence overall effect, χ2 test = 9.26 with 3 different factors, p < 0.05