PPD | Number of patients | Percentage |
6mm | 58 | 63.0 |
6,5mm | 2 | 2.2 |
7mm | 22 | 23.9 |
8mm | 2 | 2.2 |
9mm | 6 | 6.5 |
10mm | 2 | 2.2 |
Total | 92 | 100% |