Table 3.
Changes in willingness to quit smoking before and after lung cancer screening by participant characteristics
| Characteristic | No. | Mean (95% CI) |
Change (%) | p-valuea) | |
|---|---|---|---|---|---|
| Before screening | After screening | ||||
| Total | 110 | 6.3 (5.8-6.9) | 7.1 (6.6-7.6) | 12.7 | 0.007 |
| Age group (yr) | |||||
| 55-64 | 86 | 6.3 (5.7-6.9) | 7.3 (5.7-6.8) | 15.8 | 0.002 |
| 65-74 | 24 | 6.5 (5.2-7.8) | 6.3 (5.1-7.6) | –3.1 | 0.753 |
| Smoking history (pack year) | |||||
| < 40 | 50 | 6.7 (5.9-7.4) | 7.6 (7.0-8.1) | 13.4 | 0.002 |
| ≥ 40 | 60 | 6.0 (5.2-6.9) | 6.7 (5.9-7.5) | 11.7 | 0.147 |
| Years of education | |||||
| ≤ 9 | 31 | 6.7 (5.6-7.7) | 7.3 (6.4-8.1) | 9.0 | 0.149 |
| 10-12 | 39 | 6.3 (5.4-6.1) | 7.2 (6.1-8.2) | 14.3 | 0.161 |
| ≥ 13 | 38 | 6.1 (5.1-7.1) | 7.0 (6.2-7.8) | 14.8 | 0.054 |
| Monthly household income (million won) | |||||
| ≤ 199 | 46 | 6.6 (5.7-7.4) | 6.8 (6.0-7.6) | 3.0 | 0.427 |
| 200-399 | 32 | 5.6 (4.6-6.7) | 6.6 (5.9-7.3) | 17.9 | 0.025 |
| ≥ 400 | 28 | 6.6 (5.4-7.8) | 8.0 (6.8-9.2) | 21.2 | 0.125 |
CI, confidence interval.
a)
The changes in willingness to quit smoking before and after low-dose computed tomography screening were evaluated by paired t test.