Table 3 Subsite scores and the ratio of involvement for the three-stage groups
Group | Mastoid | Squama | External ear | Middle ear | Petrous apex |
|---|---|---|---|---|---|
Stage 1 | 18 | 16.5 | 17.5 | 17 | 8.5 |
23.2% | 21.3% | 22.6% | 21.9% | 11.0% | |
Stage 2 | 13 | 13 | 6 | 8.5 | 1 |
31.3% | 31.3% | 14.5% | 20.5% | 2.4% | |
Stage 3 | 8 | 3 | 5 | 5 | 1 |
36.4% | 13.6% | 22.7% | 22.7% | 4.6% |