Table 1.
Comparison of quantization of AFB from direct and concentrated smear microscopy
| Direct smear results |
No. of specimens with the following concentrated smear results: |
Total |
||||
|---|---|---|---|---|---|---|
| Negative n (%) | Scanty n (%) | 1 + n (%) | 2 + n (%) | 3 + n (%) | ||
| Negative |
827 (98.3) |
11 (1.3) |
3 (0.4) |
|
|
841 |
| Scanty |
1 (11.1) |
2 (22.2) |
6 (66.7) |
|
|
9 |
| 1+ |
|
|
8 (42.1) |
10 (52.6) |
1 (5.3) |
19 |
| 2+ |
|
|
1 (3.7) |
16 (59.3) |
10 (37.0) |
27 |
| 3+ |
|
|
|
|
19 (100) |
19 |
| Total | 828 | 13 | 18 | 26 | 30 | 915 |