Table 4 Comparison of the high and low contagious groups
From: Clinical and imaging factors that can predict contagiousness of pulmonary tuberculosis
Overall prevalence | Prevalence in high contagious group (AFB+) | Prevalence in lowly contagious group (AFB-) | p | |
|---|---|---|---|---|
History, signs, symptoms | ||||
Weight loss | 36% | 48% | 24% | 0.000*** |
Cough | 45% | 58% | 31% | 0.000*** |
Haemoptysis | 11% | 17% | 4% | 0.001** |
Previous TB | 27% | 19% | 37% | 0.001** |
German residency | 24% | 64% | 36% | 0.028* |
Passive case finding | 65% | 58% | 42% | n. s. |
Active case finding | 35% | 37% | 64% | 0.000*** |
Auscultation | 23% | 28% | 18% | 0.035* |
No history and findings | 34% | 20% | 50% | 0.000*** |
Radiological findings | ||||
CXR | ||||
- Infiltrate | 85% | 83% | 87% | 0.394 |
- Cavitation | 27% | 36% | 18% | 0.001*** |
- Miliary picture | 2% | 2% | 2% | 1.000 |
- Pleural effusion | 11% | 13% | 8% | 0.211 |
- Others+ | 3% | 3% | 5% | 0.684 |
CT | ||||
- Infiltrate | 72% | 70% | 74% | 0.491 |
- Cavitation | 50% | 62% | 37% | 0.000*** |
- Miliary picture | 3% | 4% | 2% | 0.501 |
- Pleural effusion | 13% | 16% | 9% | 0.119 |
- Tree-in-bud sign | 25% | 32% | 18% | 0.008** |
- Others+ | 2% | 1% | 3% | 0.168 |