ZN smear (with centrifugation) | N | % |
AFB positive | 59 | 19.7 |
1-9/100 field | 0 | 0 |
1+ | 20 | 6.7 |
2+ | 25 | 8.3 |
3+ | 14 | 4.7 |
AFB negative | 241 | 80.3 |