| Value | Category | Cases | |
|---|---|---|---|
| 1 | Greater than 1cm in diameter | 50 |
31.6%
|
| 2 | Less than 1cm in diameter | 62 |
39.2%
|
| 3 | Pin point | 46 |
29.1%
|
| 8 | Unknown | 0 |
0%
|
| 9 | Missing | 9 | |
| Sysmiss | 2517 |