Characteristic variables
|
AUC
|
Cut-off
values†
|
Sensitivity
%
|
Specificity
%
|
PPV
%
|
NPV
%
|
PCC
%
|
Odds ratio
|
95% CI
|
P value
|
FEV1, % predicted |
0.649 |
95.8 |
47.65 |
75.86 |
39.13 |
81.65 |
68.93 |
0.955 |
(0.939, 0.971) |
<
0.001 |
FEV1/FVC, % |
0.713 |
84.67 |
66.47 |
67.62 |
40.07 |
86.10 |
67.34 |
0.867 |
(0.837, 0.898) |
< 0.001 |
FEV3/FVC, % |
0.616 |
99.06 |
67.39 |
51.87 |
34.83 |
80.65 |
56.16 |
0.817 |
(0.726, 0.920) |
<
0.001 |
FEF25%, % predicted |
0.656 |
103.8 |
84.12 |
41.38 |
31.85 |
88.89 |
51.88 |
0.973 |
(0.963, 0.982) |
<
0.001 |
FEF50%, % predicted |
0.762 |
76.8 |
58.82 |
80.46 |
49.50 |
85.71 |
75.14 |
0.950 |
(0.939,
0.960) |
< 0.001 |
FEF75%, % predicted |
0.745 |
81.4 |
66.47 |
69.92 |
41.85 |
86.49 |
69.08 |
0.963 |
(0.955,
0.971) |
< 0.001 |
FEF25%-75%, % predicted |
0.763 |
84.4 |
70.00 |
68.97 |
42.35 |
87.59 |
69.22 |
0.950 |
(0.940,
0.960) |
< 0.001 |
R5-R20, kPa·L-1·s |
0.604 |
0.88 |
0.65 |
100.00 |
100.00 |
75.40 |
75.44 |
18.961 |
(3.119, 115.3) |
0.001 |
X5, kPa·L-1·s |
0.607 |
-0.14 |
43.79 |
78.76 |
40.36 |
81.02 |
70.11 |
0.025 |
(0.003, 0.223) |
0.001 |
Fres, L-1·s |
0.634 |
15.71 |
56.95 |
68.32 |
36.91 |
82.98 |
65.53 |
1.081 |
(1.046, 1.117) |
<
0.001 |
FENO, ppb |
0.748 |
41 |
65.29 |
78.16 |
49.33 |
87.37 |
75.00 |
1.024 |
(1.019, 1.030) |
<
0.001 |
EOS in blood, % |
0.630 |
3.4 |
55.88 |
66.28 |
35.06 |
82.19 |
63.73 |
1.130 |
(1.079,1.182) |
< 0.001 |
EOS in blood, cell/μl |
0.638 |
360 |
41.76 |
80.65 |
41.28 |
80.96 |
71.10 |
4.367 |
(2.413,7.903) |
< 0.001 |
Platelets, ×10^9/L |
0.491 |
269 |
80.00 |
24.71 |
25.71 |
79.14 |
38.30 |
0.995 |
(0.995,0.996) |
<
0.001 |