Table 2.
Summary of LDCT Screening Participants Features.
| Variables | Parameters | n/measure | (%) |
|---|---|---|---|
| Age, years | Mean (range) | 62 (38-81) | — |
| Sex | Female | 128 | (54.9) |
| Male | 105 | (45.1) | |
| Self-reported color of the skin/etnicitya | White | 129 | (55.4) |
| Black | 17 | (7.3) | |
| Brown | 80 | (34.3) | |
| Asian | 5 | (2.1) | |
| Missing | 2 | (.9) | |
| Escolarity | Illiterate | 4 | (1.7) |
| ≤4 years of education | 68 | (29.2) | |
| >4 and ≤8 years of education | 53 | (22.7) | |
| >8 and ≤12 years of education | 61 | (26.2) | |
| >12 years of education | 41 | (17.6) | |
| Missing | 6 | (2.6) | |
| Smoking status | Smoker | 177 | (76.0) |
| Former smoker | 56 | (24.0) | |
| Pack-years | Mean (range) | 56.9 (10-302.5) | — |
| Median | 45 | — | |
| Nicotine dependence grade | Low or medium | 104 | (44.6) |
| High or very high | 123 | (52.8) | |
| Missing | 6 | (2.6) | |
| NLST eligible | NLST criteria | 183 | (78.5) |
| PLCOm2012 riskb | ≥1.5 | 164 | (70.4) |
| ≥1.61 | 159 | (68.2) | |
| ≥2.0 | 136 | (58.4) | |
| Provenience | Smoking cessation groups | 103 | (44.2) |
| On-site opportunistic | 130 | (55.8) |
aSelf-reported color of the skin/ethnicity according to Brazilian Institute of Geography and Statistics (IBGE).
bestimated 6-year risk of lung cancer using PLCOM2012 international model, retrospectively applied to the sample.