RBL (mm) | Non-periodontitis cases n (%) | Periodontitis cases n (%) | Stage I n (%) | Stage II n (%) | Stage III n (%) | Stage IV n (%) |
---|---|---|---|---|---|---|
> 1 | 2 (0.4) | 452 (99.6) | 2 (0.4) | 243 (53.5) | 191 (42.1) | 16 (3.5) |
> 2 | 37 (8.1) | 417 (91.9) | 0 (0) | 212 (46.7) | 189 (41.6) | 16 (3.5) |
> 3 | 215 (47.4) | 239 (52.6) | 0 (0) | 75 (16.5) | 149 (32.8) | 15 (3.3) |