| Controls | Cases | P-value | ||
---|---|---|---|---|---|
Tail Extent Moment Mean ± SE | Non- Smokers | Former Smokers | Current Smokers | Current Smokers |  |
Baseline DNA damage | 0.26 ± 0.11 | 0.23 ± 0.09 | 0.54 ± 0.15 | 0.57 ± 0.12 | <0.001 |
H2O2- induced DNA damage | 3.2 ± 0.82 | 5.8 ± 0.31 | 10.2 ± 0.93 | 19.5 ± 0.41 | <0.001 |