Comparison of the relative difference in lung cancer cases captured including (A) and excluding (B) the variable ‘time since quit’
| African American 517 | European American 1141 | Relative per cent difference in eligibility | |
|---|---|---|---|
| (A) With the time since quitting variable | |||
| USTPSTF* | 176 (34.0%) | 449 (39.4%) | 15.5%, p=0.211 |
| NLST† | 161 (31.1%) | 381 (33.4%) | 7.4%, p=0.602 |
| CMS‡ | 171 (33.1%) | 421 (36.9%) | 11.5%, p=0.382 |
| (B) Without the time since quitting variable | |||
| USTPSTF* | 194 (37.5%) | 530 (46.1%) | 22.93%, p=0.039 |
| NLST† | 169 (32.7%) | 429 (37.6%) | 15.0%, p=0.262 |
| CMS‡ | 183 (35.4%) | 486 (42.6%) | 20.3% p=0.091 |
*NLST criteria: aged 55–74, current or former smoker, at least 30 pack-years of smoking, if former smoker, having quit within the last 15 years.
†USPSTF criteria: aged 55–80, current or former smoker, at least 30 pack-years of smoking, if former smoker, having quit within the last 15 years.
‡CMS criteria: aged 55–77, current or former smoker, at least 30 pack-years of smoking, if former smoker, having quit within the last 15 years.
AA, African American; CMS, Centers for Medicare and Medicaid Services; EA, European Americans; NLST, National Lung Screening Trial; USPSTF, US Preventive Services Task Force.