Risk factors bronchial colonization
| Colonized patients | Non-colonized patients | OR | CI (95%) | p-value | |
| Univariate analysis | |||||
| Age>65 yrs | 7 (17) | 13 (32) | 0.59 | 0.17–2.1 | ns |
| Sex M/F | 16/1 (94/6) | 21/3 (87/13) | 0.4 | 0.04–4.6 | ns |
| Smoking habits | |||||
| Smokers/exsmokers | 9/8 (53/47) | 13/11 (54/46) | 1.05 | 0.3–3.6 | ns |
| Pack yrs (>40/<40) | 13/3 (81/19) | 17/6 (74/26) | 1.80 | 1.34–2.41 | ns |
| Previous hospitalization | 1 (6) | 0 (0) | 0.4 | 0.2–0.5 | ns |
| BMI>25 | 13 (76) | 9 (37) | 5.4 | 1.3–21 | 0.01 |
| FEV1<65% | 5 (29) | 4 (17) | 1.9 | 0.4–8.8 | ns |
| DL,CO<70% | 4 (13) | 6 (20) | 1.0 | 0.21–4.71 | ns |
| Tumour location | |||||
| Central versus peripheral | 11/6 (65/35) | 4/20 (16/84) | 9.1 | 2.1–39.6 | 0.002 |
| Multivariate analysis | |||||
| Central tumour | 11 (65) | 4 (16) | 9.2 | 2.1–39.6 | 0.003 |
| BMI>25 | 13 (76) | 9 (37) | 1.6 | 1.2–2.2 | 0.0047 |
Data are presented as n (%) unless otherwise stated
OR: odds ratio
CI: confidence interval
ns: not significant
M: mate
F: female
BMI: body mass index
FEV1: forced expiratory volume in one second
DL,CO: diffusion capacity for carbon monoxide