Table 3 Baseline characteristics of 146 PiSZ patients split according to CT scan findings
CT scan performed (% of pts) | 146 (62.1%) | Pack years | FEV1% predicted Pre-bronchodilator | KCO % predicted |
|---|---|---|---|---|
Bx alone Current smoker Ex-smoker Never | 17 (11.6%) 2 (11.8%) 6 (35.3%) 9 (52.9%) | ND 16.5 (14.0%) 0 | ND 104.3 (22.7) n = 5 89.7 (14.4) n = 7 | ND 96.1 (13.3) n = 6 93.1 (11.4) n = 7 |
Emphysema alone Current smoker Ex-smoker Never | 47 (32.2%) 10 (21.2%) 31 (66.0%) 6 (12.8%) | 32.6 (23.7) 41.3 (24.7) 0 | 95.1 (21.1) n = 9 88.2 (21.2) n = 22 ND | 72.7 (20.3) n = 8 64.7 (23.5) n = 26 72.4 (31.5) n = 5 |
Emphysema + Bx Current smoker Ex-smoker Never | 21 (14.4%) 3 (14.2%) 17 (81.0%) 1 (4.8%) | ND 38.2 (36.7) 0 | ND 76.8 (34.5) n = 12 ND | ND 68.5 (20.3) n = 15 ND |
Normal CT scan Current smoker Ex-smoker Never | 61 (41.8%) 2 20 39 | ND 12.1 (10.4) 0 | ND 94.1 (20.2) n = 15 101.6 (18.6) n = 29 | ND 99.5 (17.0) n = 15 90.7 (13.8) n = 30 |