| Group ISB | Group SSB | Group LA | Control |
No. of patients | 22 | 23 | 22 | 24 |
Mean age (years) | 48.95 | 48.70 | 54.77 | 48.79 |
Sex (m/f) | 11/11 | 7/16 | 7/15 | 10/14 |