| Value | Category | Cases | |
|---|---|---|---|
| 1 | first visit | 2754 | 
                                    
                                    66.2%
                                 | 
| 2 | second visit | 884 | 
                                    
                                    21.3%
                                 | 
| 3 | third visit | 519 | 
                                    
                                    12.5%
                                 | 
| Sysmiss | 2063 |