Table 3 Clinical and general knowledge of TB according to health professionals
| Â | Physician | Nurse | Others | P value |
|---|---|---|---|---|
n = 140 | n = 256 | n = 44 |  | |
Knowledge score, mean (SD) | 8.46 (0.96) | 7.70 (1.16) | 7.64 (1.03) | <0.001 |
Clinical knowledge about TB-no. (%) of answered | ||||
 TB is a treatable disease. (n = 435) | 139 (99.3) | 240 (95.2) | 40 (93.0) | 0.052 |
 All people with the TB infection develop the TB disease. | 128 (93.4) | 188 (76.7) | 33 (76.7) | <0.001 |
Symptom that can identify TB (n = 427) | ||||
 Rate of correct answer-mean (SD), % | 92.4 (10.2) | 87.9 (10.3) | 81.5 (16.2) | <0.001 |
Risk disease for TB (n = 432) | ||||
 Rate of correct answer-mean (SD), % | 89.7 (14.5) | 72.4 (20.7) | 69.1 (20.9) | <0.001 |
Consequences of incomplete or abandoned treatment (n = 447) | ||||
 Development of drug resistant | 135 (96.4) | 205 (81.3) | 33 (75.0) | <0.001 |
 Spreading infection to other people | 102 (72.9) | 153 (60.7) | 23 (52.3) | 0.014 |
 Development of extra-pulmonary or systemic TB | 89 (63.6) | 132 (52.4) | 20 (45.5) | 0.040 |
TB Transmission -answered ‘Yes’-n (%) | ||||
 Patients with active TB disease can infect people by coughing. (n = 435) | 134 (95.7) | 244 (97.2) | 42 (95.5) | 0.671 |
 TB is often spread from person to person through the air. (n = 431) | 124 (89.2) | 229 (92.0) | 40 (93.0) | 0.631 |
 TB is often spread from person to person through sexual contact. (n = 422) | 128 (92.8) | 224 (92.9) | 36 (83.7) | 0.122 |
 Patients with active TB disease can infect people by spitting. (n = 429) | 134 (97.8) | 241 (97.2) | 44 (100.0) | 0.804 |
 HIV-positive patients are more vulnerable to catching TB than HIV-negative. (n = 434) | 132 (94.3) | 230 (92.0) | 42 (95.5) | 0.663 |
 TB is often spread from person to person by blood. (n = 428) | 124 (89.9) | 230 (93.1) | 35 (81.4) | 0.041 |
 Patients with active TB disease are more likely to infect others if they have a cough that produces a lot of sputum. (n = 433) | 132 (94.3) | 231 (92.8) | 42 (65.5) | 0.745 |
 TB can be transmitted through handshakes. (n = 431) | 136 (97.1) | 235 (94.8) | 41 (95.3) | 0.500 |
 TB can be transmitted through mixing patient’s clothes in the washing-machine. (n = 431) | 135 (96.4) | 233 (94.0) | 40 (93.0) | 0.557 |
Global condition of TB in Vietnam | ||||
What is the global condition of TB-burden of Vietnam | Â | Â | Â | <0.001 |
 High-burden country | 121 (87.7) | 153 (63.5) | 25 (56.8) |  |
 Middle-burden country | 16 (11.7) | 79 (33.6) | 14 (35.0) |  |
 Low-burden country | 0 (0.0) | 3 (1.3) | 1 (2.5) |  |
Respirators relating to TB | ||||
 N95 protect healthcare workers and visitors by stopping TB particles from being breathed in - ‘Yes’-n (%). (n = 422) | 123 (91.1) | 215 (88.5) | 37 (84.1) | 0.658 |
 This is an N95 mask - ‘No’-n (%) (n = 410) < picture of gauze mask> | 119 (90.8) | 213 (93.4) | 29 (76.3) | 0.004 |