From the 2008 National Health Interview Survey Asthma Supplement:
DURING THE PAST 12 MONTHS, HOW MANY DAYS were you UNABLE to work because of your asthma?
[NUMERATOR AND DENOMINATOR:]
During the PAST 12 MONTHS, have you had an episode of asthma or an asthma attack?
Persons are classified as having missed work if they responded “1-365” to the question about number of days missed.
The target was revised from 26.8 to 26.7 due to a change in the rounding rules for target calculations of Minimal Statistical Significance.