Pulmonary Densitovolumetry Using Computed Tomography in Patients with Nontuberculous Mycobacteria: Correlation with Pulmonary Function Tests
Table 1
Patients and control subjects characteristics.
NTM Group
Control Group
p
No. of subjects
31
27
Demographic data
Males, %
15 (48.4%)
13 (48.1)
0.92
Age, y
57.2 ± 16.5
52.4 ± 15.3
0.12†
BMI, kg/m2
23.8 ± 4.87
25.8 ± 4.72
0.16†
NTM species
M. kansasii
18 (58.1)
M. avium complex
8 (25.8)
M. fortuitum
3 (9.68)
M. gordonae
1 (3.23)
M. abscessus
1 (3.23)
Lung function
FVC (% predicted)
82.7 ± 25.3
102 ± 8.12
0.005†
FEV1 (% predicted)
72.7 ± 25.4
101.2 ± 8.75
0.003†
FEV1/FVC (%)
84.3 ± 15.2
82.1 ± 5.28
0.34†
TLC (% predicted)
90.4 ± 18.5
94.6 ± 9.11
0.25†
RV (% predicted)
119 ± 45.6
75.8 ± 23.2
0.001†
RV/TLC (%)
37.5 ± 12.4
25.7 ± 8.90
0.02†
Raw (cmH2O/L/s)
6.53 ± 3.77
2.31 ± 2.13
<0.001†
Values are means ± SD or number (%). Fisher exact test. †Student t-test. BMI = body mass index; NTM = nontuberculous mycobacteria; FVC = forced vital capacity; FEV1 = forced expiratory volume in one second; TLC = total lung capacity; RV = residual volume; Raw = airway resistance.