Value |
Category |
1 |
Days (if <7 days) |
2 |
Weeks (if >= 7 days and <4 weeks) |
3 |
Months (if >=4 weeks and less than 1 year) |
4 |
Years (if 1 year or longer) |
98 |
Don’t know |
99 |
Refused to answer |
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.