| Value |
Category |
| -99 |
Don?t know |
| -95 |
No difficulty |
| -88 |
Other (specify) |
| 1 |
Nausea |
| 2 |
Constipation |
| 3 |
Darkening of the stool |
| 4 |
Abdominal discomfort |
| Sysmiss |
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.