Table 1.
Prevalence of lung and heart CT abnormalities according to cumulative smoke exposure and according to time since interruption
| Never smoker | Pack year group | p-value (p per trend) | Never smoker | Stop smoking group | p-value (p per trend) | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 0–10 | 11–20 | >20 | <10 years | 10–20 years | >20 years | |||||
| Emphysema | 41 (19%) | 37 (23%) | 62 (34%) | 186 (54%) | <0.001 (<0.001) | 41 (19%) | 35 (33%) | 25 (27%) | 24 (39%) | 0.003 (0.01) |
| Bronchiolitis | 27 (13%) | 31 (19%) | 57 (31%) | 156 (45%) | <0.001 (<0.001) | 27 (13%) | 18 (17%) | 15 (16%) | 14 (23%) | 0.24 (0.29) |
| Lung nodules | 15 (7%) | 8 (4.94) | 5 (2.73) | 16 (4.65) | 0.26 (0.19) | 15 (7%) | 3 (2.9%) | 5 (5.4%) | 2 (3.28%) | 0.39 (0.14) |
| Bronchial wall thickening | 104 (49%) | 83 (52%) | 119 (65%) | 262 (76%) | <0.001 (<0.001) | 104 (49%) | 65 (62%) | 49 (53%) | 40 (65%) | 0.04 (0.05) |
| Bronchiectasis | 33 (16%) | 21 (13%) | 35 (19%) | 61 (18%) | 0.42 (0.29) | 33 (16%) | 18 (17%) | 13 (14%) | 17 (28%) | 0.11 (0.97) |
| Interstitial lung disease | 1 (0.5%) | 0 (0%) | 1 (0.6%) | 7 (2%) | 0.09 (0.03) | 1 (0.5%) | 0 (0%) | 1 (1%) | 0 (0%) | 0.6 |
| Multimorbidity lung | 65 (30%) | 55 (34%) | 92 (50%) | 233 (68%) | <0.001 (<0.001) | 65 (30%) | 47 (45%) | 34 (37%0) | 32 (52%) | 0.005(0.02) |
| Myocardial infarction | 9 (4%) | 4 (2.5%) | 9 (5%) | 25 (7%) | 0.11 (0.048) | 9 (4%) | 13 (12%) | 5 (5%) | 6 (9%) | 0.039 (0.02) |
| CAC >100 | 16 (7.5%) | 8 (5%) | 17 (9%) | 49 (14%) | 0.004 (0.002) | 16 (7.5%) | 9 (8%) | 13 (14%) | 8 (13%) | 0.25 (0.42) |
| Multimorbidity heart | 24 (11%) | 10 (6%) | 23 (13%) | 66 (19%) | <0.001 (<0.001) | 24 (11.%) | 18 (17%) | 15 (16%) | 12 (19%) | 0.26 (0.1) |
| Multimorbidity lung and heart disease (MLHD) | 78 (36%) | 59 (36%) | 98 (53%) | 249 (72%) | <0.001 (<0.001) | 78 (36%) | 55 (52%) | 38 (41%) | 33 (54%) | 0.013 (0.017) |