Prevalence of occupational and environmental risk factors among healthcare workers
| Variable | Subjects n | % |
| Occupational tasks | ||
| Interviewing TB patients | 166 | 49 |
| Counselling TB patients | 145 | 43 |
| Examination of TB patients | 74 | 22 |
| Collecting of sputum | 73 | 22 |
| Nursing TB patients | 103 | 30 |
| Homecare of TB patients | 29 | 9 |
| Bronchoscopy | 6 | 2 |
| Facility factors (self-reported) | ||
| Infection control policy | 220 | 64 |
| Ventilation measures | 315 | 93 |
| Ultraviolet lights | 157 | 46 |
| Cough etiquette | 265 | 78 |
| Early triage | 205 | 60 |
| Separation of TB patients | 157 | 46 |
| Diagnostic services | 262 | 77 |
| Disposable surgical masks | 322 | 95 |
| N-95 masks | 317 | 94 |
| Personal protective equipment | 303 | 89 |
| Training (protection of self) | 219 | 65 |
| Training (protection of patients) | 201 | 59 |
Total n=339. All variables as measured at baseline 12 months earlier than the commencement of the follow-up phase. TB: tuberculosis.