|
Variable
|
Success (n = 24)
|
Failure (n = 6)
|
P value
|
|---|
|
Patient characteristics
|
|
Age, yr. (mean ± SD)
|
66 ± 10
|
72 ± 10
|
0.2
|
|
Sex
| | |
0.2
|
|
Male
|
12
|
12
| |
|
Female
|
12
|
12
| |
|
History of malignancy
| | |
0.6
|
|
No
|
9
|
2
| |
|
Yes
|
15
|
4
| |
|
Clinical suspicion
| | |
1
|
|
Infection
|
7
|
2
| |
|
Cancer
|
17
|
4
| |
|
Bronchoscopy before biopsy
| | |
0.3
|
|
No
|
17
|
6
| |
|
Yes
|
7
|
0
| |
|
CT findings
|
|
Emphysema
| | |
0.1
|
|
Absent
|
18
|
2
| |
|
Present
|
6
|
4
| |
|
Distribution of consolidation
| | |
0.7
|
|
Single lung
|
13
|
4
| |
|
Bilateral
|
11
|
2
| |
|
Ground glass component
| | |
0.009
|
|
Absent
|
5
|
5
| |
|
Present
|
19
|
1
| |
|
Presence of cavitation
| | |
0.6
|
|
Absent
|
20
|
6
| |
|
Present
|
4
|
0
| |
|
Hilar adenopathy
| | |
0.6
|
|
Absent
|
16
|
5
| |
|
Present
|
8
|
1
| |
|
Mediastinal adenopathy
| | |
1
|
|
Absent
|
17
|
5
| |
|
Present
|
7
|
1
| |
|
Pleural effusion
| | |
0.2
|
|
Absent
|
12
|
5
| |
|
Present
|
12
|
1
| |
|
Procedure Characteristics
|
|
Biopsy site
| | |
0.07
|
|
Above the hilum
|
9
|
5
| |
|
Below the hilum
|
15
|
1
| |
|
Transversed aerated lung
| | |
1
|
|
No
|
21
|
5
| |
|
Yes
|
3
|
1
| |
|
Area biopsied
| | |
0.7
|
|
Edge
|
13
|
4
| |
|
Center
|
11
|
2
| |
|
Needle path, mm (mean ± SD)
|
17 ± 1
|
14 ± 1
|
0.5
|
|
Hemoptysis
| | |
1
|
|
No
|
22
|
6
| |
|
Yes
|
2
|
0
| |
|
Pneumothorax
| | |
0.5
|
|
No
|
22
|
5
| |
|
Yes
|
2
|
1
| |
|
Samples obtained
| | |
1
|
|
FNA only
|
7
|
1
| |
|
FNA and core
|
17
|
5
| |
|
Final diagnosisa
| | |
0.02
|
|
Malignant
|
19
|
1
| |
|
Benign
|
5
|
4
| |
- afinal diagnosis was only available for 29 patients as one patient was lost to follow-up
- Student t-test was used for continuous variables
- Fisher exact test was used for categorical variables
