| Value | Category | Cases | |
|---|---|---|---|
| 0 | no: received treatm. | 12 | 
                                                                 
                                    
                                    25.5%
                                 
                                                             | 
                                                        
                    
| 1 | yes: no treatment | 34 | 
                                                                 
                                    
                                    72.3%
                                 
                                                             | 
                                                        
                    
| 8 | dk | 1 | 
                                                                 
                                    
                                    2.1%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 6708 |