Table 1

Subject characteristics

n
Age, median (range)57 (42–77)
Gender
 Male8 (36%)
 Female14 (64%)
Ethnicity
 Non-Hispanic white18 (82%)
 Non-Hispanic black2 (9%)
 Hispanic2 (9%)
Baseline histology
 Mild dysplasia11 (50%)
 Mild-moderate dysplasia2 (9%)
 Moderate dysplasia2 (9%)
 Moderate-severe dysplasia1 (5%)
 Severe dysplasia1 (5%)
 CIS5 (23%)
Smoking history
 Former smoker12 (55%)
 Never smoker10 (45%)
 Median number pack-years23
Alcohol history
 Former alcohol user (any amount)2 (9%)
 Current alcohol user (any amount)17 (77%)
 Never used alcohol3 (14%)