Robinson classification | No. of patients (% of population) | Mean age ± SD | Mean ISS* ± SD |
---|---|---|---|
1A | 8 (4.9%) | 33.9 (± 20.6) | 36.3 (± 11.2) |
1B | 2 (1.2%) | 60.0 (± 24.0) | 27.5 (± 9.1) |
2A | 51 (31.1%) | 48.9 (± 22.7) | 29.2 (± 9.5) |
2B | 61 (37.2%) | 39.5 (± 18.3) | 29.8 (± 11.8) |
3A | 32 (19.5%) | 57.5 (± 21.0) | 29.0 (± 9.7) |
3B | 10 (6.1%) | 51.3 (± 18.3) | 23.7 (± 4.8) |