Characteristic Overall, N = 51,4331 Screening Group p-value2
High risk group, N = 38,8461 Household contacts, N = 12,5871
Age (years) <0.001
Mean (SD) 55 (18) 59 (14) 41 (21)
Median (IQR) 58 (46, 67) 61 (52, 69) 44 (22, 57)
AI Score <0.001
Mean (SD) 0.18 (0.27) 0.20 (0.29) 0.10 (0.19)
Median (IQR) 0.05 (0.02, 0.18) 0.06 (0.02, 0.24) 0.03 (0.01, 0.08)
Gender <0.001
Female 30,320 (59%) 22,455 (58%) 7,865 (62%)
Male 21,113 (41%) 16,391 (42%) 4,722 (38%)
Elderly (60 or older) 24,153 (47%) 21,465 (55%) 2,688 (21%) <0.001
Old TB 5,114 (9.9%) 5,088 (13%) 26 (0.2%) <0.001
Asthma 1,304 (2.5%) 1,299 (3.3%) 5 (<0.1%) <0.001
Smoker 5,957 (12%) 5,940 (15%) 17 (0.1%) <0.001
Alcoholic 1,253 (2.4%) 1,248 (3.2%) 5 (<0.1%) <0.001
Malnutrition 652 (1.3%) 648 (1.7%) 4 (<0.1%) <0.001
Hypertension 17,365 (34%) 17,295 (45%) 70 (0.6%) <0.001
Diabetes 5,169 (10%) 5,147 (13%) 22 (0.2%) <0.001
Coughing 14,499 (28%) 11,356 (29%) 3,143 (25%) <0.001
Fever 1,197 (2.3%) 855 (2.2%) 342 (2.7%) <0.001
Night sweats 1,462 (2.8%) 1,125 (2.9%) 337 (2.7%) 0.2
Weight loss 2,524 (4.9%) 2,062 (5.3%) 462 (3.7%) <0.001
Any symptom 16,333 (32%) 12,796 (33%) 3,537 (28%) <0.001
Abnormal TB CXR - Province 7,405 (14%) 6,177 (16%) 1,228 (9.8%) <0.001
Abnormal TB CXR - Central 5,716 (11%) 5,146 (13%) 570 (4.5%) <0.001
AI Score >= 0.50 6,992 (14%) 6,257 (16%) 735 (5.8%) <0.001
GeneXpert result (final) 0.070
Negative 6,584 (91%) 5,470 (90%) 1,114 (92%)
Trace 69 (0.9%) 64 (1.1%) 5 (0.4%)
Positive 620 (8.5%) 524 (8.6%) 96 (7.9%)
1 n (%)
2 Wilcoxon rank sum test; Pearson's Chi-squared test