Table. Baseline Characteristics of Individuals Undergoing Lung Cancer Screening Between March 9 and December 9, 2021.
| Characteristic | USPSTF eligibility criteriaa | P value | |
|---|---|---|---|
| 2021 (n = 161) | 2013 (n = 654) | ||
| Age, mean (SD), y | 59.00 (6.02) | 64.87 (5.37) | <.001 |
| Gender | |||
| Women | 97 (60.2) | 369 (56.4) | .38 |
| Men | 64 (39.8) | 285 (43.6) | |
| Race | |||
| African American | 87 (54.0) | 258 (39.5) | .002 |
| White | 64 (39.8) | 357 (54.7) | |
| Otherb | 10 (6.2) | 38 (5.8) | |
| Smoking status | |||
| Current | 105 (65.2) | 360 (55.0) | .02 |
| Former | 56 (34.8) | 294 (45.0) | |
| Pack-years, mean (SD) | 36.86 (18.20) | 52.40 (22.88) | <.001 |
| Personal history of cancer | 15 (9.3) | 102 (15.8) | .11 |
| Family history of lung cancer | 42 (26.1) | 175 (26.8) | .98 |
| COPD | 42 (26.1) | 271 (41.4) | <.001 |
| Education | |||
| <High school diploma | 24 (14.9) | 85 (13.0) | .65 |
| High school diploma/GED | 70 (43.5) | 289 (44.2) | |
| >High school diploma | 64 (39.8) | 256 (39.1) | |
| Unknown | 3 (1.9) | 24 (3.7) | |
| Insurance status | |||
| Medicare | 28 (17.4) | 259 (39.6) | <.001 |
| Medicaid or dual eligible | 62 (38.5) | 161 (24.6) | |
| Private | 64 (39.8) | 211 (32.3) | |
| Other or none | 3 (2.6) | 23 (3.5) | |
| PLCOm2012 lung cancer risk, mean (SD)c | 3.27 (4.40) | 6.64 (6.37) | <.001 |
| Lung-RADS | |||
| 1 | 54 (33.5) | 236 (36.1) | .79d |
| 2 | 74 (46.0) | 306 (46.8) | |
| 3 | 17 (10.6) | 55 (8.4) | |
| 4A, 4B, 4X | 10 (6.2) | 41 (6.3) | |
| Not assigned | 6 (3.7) | 16 (2.4) | |
| Screen-detected lung cancer diagnosis | 0 | 12 (1.8) | .08d |
Abbreviations: COPD, chronic obstructive pulmonary disorder; GED, General Educational Development; Lung-RADS, Lung Imaging Reporting and Data System; USPSTF, US Preventive Services Task Force.
The USPSTF-eligible cohorts are comprised of individuals who were eligible and underwent lung cancer screening.
Includes individuals who self-identified as Alaskan Native or American Indian, Asian, Native Hawaiian or Pacific Islander, or more than 1 race.
The PLCOm2012 model is a lung cancer risk prediction model derived from the Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial and modified using National Lung Screening Trial data by Tammemagi and colleagues.6
Due to the small sample size in the USPSTF 2021–eligible cohort, the expected count for not assigned under Lung-RADS, and a lung cancer diagnosis under screen-detected lung cancer diagnosis was fewer than 5. Therefore, the statistical significance result from the χ2 test may not be valid.