Table 3 Representation of variables included in regression analyses of the EAGLE study
Factor | Representation | Values |
|---|---|---|
Pack-yearsa | Continuous | |
Female | Categorical | Male = 0 |
Female = 1 | ||
Age | Continuous | Years |
Education | Trend | None = 0 |
Elementary = 1 | ||
Middle school = 2 | ||
High school or more = 3 | ||
Smoked cigars, pipes, cigarillos | Categorical | Never Smoked = 0 |
Smoked = 1 | ||
ETS in the workplace | Categorical | No ETS = 0 |
ETS = 1 | ||
High-risk occupationb | Categorical | No occupation = 0 |
Occupation = 1 | ||
Average percent inhaled | Trend | Never smoker = 0 |
<25% = 1 | ||
25-49% = 2 | ||
50-74% = 3 | ||
75-100% = 4 | ||
Years since quitting | Continuous | Years |