Table 3 Comparison of contacts with and without GeneXpert-diagnosed TB
Demographic characteristics | GeneXpert-diagnosed TB (N = 5) | Clinical signs and GeneXpert-diagnosed TB (N = 13) | ||||
|---|---|---|---|---|---|---|
TB | No TB | P-value# | TB | No TB | P-value# | |
Contact type N (%) | ||||||
Household | 4 (5.3) | 72 (95) | 0.17 | 6 (7.9) | 70 (92) | 0.85 |
Social | 1 (1.3) | 79 (99) | 7 (8.8) | 73 (91) | ||
Age group N (%) | ||||||
< 20 years | 0 | 24 (100) | 0.64 | 1 (4.2) | 23 (96) | 0.73 |
20–25 years | 5 (4.6) | 109 (95) | 11 (10) | 98 (90) | ||
> 25 years | 0 | 23 (100) | 1 (4.4) | 22 (96) | ||
Gender N (%) | ||||||
Male | 2 (2.5) | 78 (98) | 0.48 | 7 (8.8) | 73 (91) | 0.85 |
Female | 3 (4.0) | 73 (96) | 6 (7.9) | 70 (92) | ||
Relation to index case N (%) | ||||||
Relative | 1 (2.4) | 41 (98) | 0.58 | 2 (4.8) | 40 (95) | 0.46 |
Friend | 2 (2.5) | 78 (98) | 7 (8.8) | 73 (91) | ||
Student | 0 | 7 (100) | 0 | 7 (100) | ||
Others* | 2 (7.4) | 25 (93) | 4 (15) | 23 (85) | ||
Time spent with index case N (%) | ||||||
All time | 3 (6.5) | 43 (94) | 0.60 | 5 (11) | 41 (89) | 0.73 |
Night only | 1 (2.4) | 41 (98) | 2 (4.8) | 40 (95) | ||
Day only | 1 (1.6) | 61 (98) | 6 (9.7) | 56 (90) | ||
Others % | 0 | 6 (100) | 0 | 6 (100) | ||
Share a bed with index case N (%) | 4 (15) | 22 (85) | 0.003 | 4 (15) | 22 (85) | 0.15 |
Sleep in same room with index N (%) | 4 (7.1) | 52 (93) | 0.06 | 5 (8.9) | 51 (91) | 0.84 |
Clinical signs N (%) | ||||||
Coughing ≥ 2 weeks | 5 (6.1) | 77 (94) | 0.06 | 13 (16) | 69 (84) | < 0.001 |
Fever | 4 (6.7) | 56 (93) | 0.07 | 12 (20) | 48 (80) | < 0.001 |
Had weight loss | 2 (2.9) | 67 (97) | 0.98 | 10 (14) | 59 (86) | 0.02 |
Drenching night sweats | 5 (10) | 43 (90) | 0.002 | 13 (27) | 35 (73) | < 0.001 |
Swelling at neck/armpits/groin | 1 (3.7) | 26 (96) | 0.98 | 6 (22) | 21 (78) | 0.01 |
Underlying medical conditions | 0 | 9 (100) | 0.98 | 3 (33) | 6 (67) | 0.03 |
HIV positive | 0 | 3 (100) | 0.98 | 0 | 3 (100) | 0.98 |