| Value | Category | Cases | |
|---|---|---|---|
| 1 | lower abdomen | 264 |
4.2%
|
| 2 | upper abdomen | 98 |
1.6%
|
| 3 | all over abdomen | 241 |
3.9%
|
| 6 | other | 12 |
0.2%
|
| 7 | refused | 0 |
0%
|
| 8 | don't know | 183 |
2.9%
|
| 9 | NIU (not in universe) | 4475 |
72%
|
| 9999995 | missing:impute | 945 |
15.2%
|