For persons aged 18 and older, EMPHYSEMRD reports if the person was ever diagnosed with emphysema. Only persons who were in scope in round 5 of the panel in relative year 2 or round 3 of the panel in relative year 1 were asked this question.
Codes and Frequencies
ComparabilityThe comparability of this variable over time has not yet been assessed.
- 2000-2006 : PERWEIGHT