During the last 12 months/year have you experienced any coughing up sputum or phlegm for most days of the month for at least 3 months? If 327 to 329 are ‘NO’ 333
Categories
Value
Category
M
N
Y
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: Now I would like to ask you about some health symptoms you may have experienced, and the treatment or medical care received