Covariate
|
False negatives (n = 59)
|
Rest population (n = 274)
|
p-value
|
---|
Proportion / mean ± standard deviation
|
Proportion / mean ± standard deviation
|
---|
Age, years
|
65.7 ± 12.7
|
64.1 ± 11.0
|
0.38 t
|
COPD GOLD grade
|
mode: 2
|
mode: 0
|
0.22 c
|
Chest tube
|
0.32
|
0.42
|
1 c
|
Soft tissue emphysema
|
0.12
|
0.14
|
1 c
|
Ipsilateral pretreatment (surgery or irradiation)
|
0.10
|
0.23
|
1 c
|
Packyears
|
33.8 ± 27.35
|
32.1 ± 26.9
|
0.66 t
|
Thoracotomy
|
0.42
|
0.52
|
1 c
|
BMI, kg/m2
|
25.6 ± 4.6
|
26.9 ± 5.5
|
0.08 t
|
Male gender
|
0.54
|
0.55
|
1 c
|
Supine X-ray
|
0.68
|
0.57
|
1 c
|
- c Chi-squared-test, t student‘s t-test