During the last 12 months, have you experienced any coughing up sputum or phlegm for most days of the month for at least 3 months?
Categories
Value
Category
Cases
1
yes
104
6.8%
2
no
1418
93.2%
Sysmiss
38
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.
Interviewer instructions
Interviewer: If Q4027, Q4028 and Q4029 are "No" Skip to Q4031
