Table 3. Changes in the level of motivation to quit smoking before and after lung cancer screening by participant characteristicsa.
| Characteristic | No. of participants | Before screening, Mean (95% CI) | After screening, Mean (95% CI) | P valueb |
|---|---|---|---|---|
| All participants | 2,593 | 6.5 (6.4–6.6) | 7.1 (7.0–7.2) | 0.01 |
| Younger participant (age: 55–64 years) | 1,847 | 6.4 (6.3–6.5) | 7.0 (6.9–7.2) | 0.01 |
| Older participant (age; 65–74 years) | 746 | 6.6 (6.4–6.8) | 7.2 (7.0–7.4) | 0.01 |
| Heavy smoker (30–44 PY) | 1,850 | 6.5 (6.4–6.6) | 7.1 (7.0–7.2) | 0.01 |
| Heavier smoker (≥45 PY) | 743 | 6.5 (6.3–6.7) | 7.1 (6.9–7.3) | 0.01 |
| Less educated (did not finish secondary education) | 617 | 6.2 (6.0–6.4) | 6.9 (6.7–7.1) | 0.01 |
| More educated (high school or higher) | 1,972 | 6.6 (6.5–6.7) | 7.2 (7.1–7.3) | 0.01 |
| Lower income (2.0 mil/month) | 983 | 6.5 (6.4–6.7) | 7.2 (7.0–7.3) | 0.01 |
| Higher income (>2.0 mil/month) | 1,603 | 6.4 (6.3–6.6) | 7.0 (6.9–7.2) | 0.01 |
| Negative screening (Lung-RADS 1 or 2) | 2,160 | 6.5 (6.4–6.6) | 7.0 (6.9–7.2) | 0.01 |
| Positive screening (Lung-RADS 3 or 4) | 433 | 6.5 (6.3–6.8) | 7.3 (7.1–7.6) | 0.01 |
CI, confidence interval; Lung-RADS, Lung Imaging Reporting and Data System; PY, pack-years. a, Participant’s motivation to quit smoking was subjectively measured on a scale of 0–10, where 0 indicates no intention to quit smoking and 10 indicates the highest degree of motivation to quit smoking. There were 3,052 current smokers, but 459 did not answer these particular questions in the survey. Hence, we only reported the results of the remaining 2,593 participants. b, P values were evaluated using a paired t-test.