Table 2. Findings in chest radiography correlated with the cigarette consumption.
| Findings in chest radiography | Cigarette consumption (pack years) |
Total (n=85) | |||||
| <20 (n=33) | 20–<40 (n=30) | 40–<60 (n=13) | ≥60 (n=9) | ||||
| Bronchial wall thickening | 28 (85%) | 19 (64%) | 10 (77%) | 6 (67%) | 63 (74%) | ||
| Linear pattern | 4 (12%) | 11 (37%) | 4 (31%) | 3 (33%) | 22 (26%) | ||
| Overall marking score | 0 | 0/0 | 14 (42%) | 5 (17%) | 3 (23%) | 0 | 22 (26%) |
| 1 | 0/1 | 8 (24%) | 5 (17%) | 0 | 1 (11%) | 14 (16%) | |
| 2 | 1/0 | 8 (24%) | 7 (23%) | 3 (23%) | 0 | 18 (21%) | |
| 3 | 1/1 | 1 (3%) | 5 (17%) | 5 (38%) | 2 (22%) | 13 (15%) | |
| 4 | 1/2 | 2 (6%) | 4 (13%) | 2 (15%) | 2 (22%) | 10 (12%) | |
| 5 | 2/1 | 0 | 3 (10%) | 0 | 3 (33%) | 6 (7%) | |
| 6 | 2/2 | 0 | 1 (3%) | 0 | 1 (11%) | 2 (2%) | |
| Emphysema | Moderate | 13 (40%) | 16 (53%) | 8 (61%) | 2 (22%) | 39 (46%) | |
| Severe | 5 (15%) | 6 (20%) | 4 (13%) | 6 (67%) | 21 (25%) | ||
| Total | 18 (55%) | 22 (73%) | 12 (92%) | 8 (89%) | 60 (71%) | ||