| Value | Category | Cases | |
|---|---|---|---|
| 1 | born with it | 822 |
3.3%
|
| 2 | illness | 10339 |
41.9%
|
| 3 | accident | 2245 |
9.1%
|
| 4 | age related reasons | 8605 |
34.9%
|
| 5 | as a result of violence | 148 |
0.6%
|
| 6 | other | 814 |
3.3%
|
| 8 | don't know | 1677 |
6.8%
|
| Sysmiss | 19964 |