Value |
Category |
-999 |
Don't know |
-888 |
Refuse to answer |
-666 |
Other (please specify) |
1 |
Medical condition |
2 |
Accident |
11 |
.D |
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.