| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 229 | 
                                    
                                    43.1%
                                 | 
| 1 | Yes: RHS - spontan. | 0 | 
                                    
                                    0%
                                 | 
| 2 | Yes: RHS - probed | 301 | 
                                    
                                    56.7%
                                 | 
| 8 | Don't know | 1 | 
                                    
                                    0.2%
                                 |