Characteristics of the cases included in this study
| African American N=517 | European American N=1141 | p Value | |
|---|---|---|---|
| Smoking status | |||
| Never | 36 (7%) | 106 (9.4%) | <0.0001 |
| Former | 188 (36.6%) | 523 (46.3%) | |
| Current | 288 (56%) | 494 (43.8%) | |
| Missing | 2 (0.4%) | 6 (0.5%) | |
| Gender | |||
| Male | 270 (54%) | 600 (53%) | 0.892 |
| Female | 247 (48%) | 541 (47%) | |
| Age (mean, range) | 63.8 (34–88) | 66.2 (26–91) | <0.0001 |
| Pack-years (mean, range) | 35.1 (0–185) | 44.2 (0–194.2) | <0.0001 |
| Years since quit (mean, range) | 5.9 (0–48) | 9.0 (0–56) | |
| ≤15* | 111 (59%) | 242 (46%) | <0.0001 |
| >15* | 77 (41%) | 281 (54%) | |
*Former smokers only.