Older Age and Abnormal Pulmonary Ventilation Function Do Not Increase the Risk of Pulmonary Hemorrhage Caused by CT-Guided Percutaneous Core Needle Biopsy
Table 2
Relationship between incidence of pulmonary hemorrhage and different types and severity of pulmonary dysfunctions.
Pulmonary function test
Pulmonary hemorrhage
X2
value†
Yes
No
Type classificationδ
Normal pulmonary function
41
127
Mixed pulmonary dysfunction
4
18
0.417
0.519
Restrictive pulmonary dysfunction
3
8
0.000
1.000
Obstructive pulmonary dysfunction
19
54
0.072
0.789
Small airway pulmonary dysfunction
20
49
0.537
0.464
Severity†
26
80
3.037
0.560
Mild spirometric dysfunction (70 ≤ FEV1% pred)
15
39
Moderate spirometric dysfunction (60 ≤ FEV1% pred < 70)
3
20
Moderately severe spirometric dysfunction (50 ≤ FEV1% pred < 60)
3
9
Severe spirometric dysfunction (35 ≤ FEV1% pred < 50)
4
7
Very severe spirometric dysfunction (FEV1% pred < 35)
1
5
Values are presented as numbers. δEach group compared with normal ventilation function group. ⸸Overall comparison among different severity levels in obstructive, restrictive, and mixed function dysfunctions. †Chi-square test. % pred: percent predicted.
