Table 3. Correlation analysis among fractional-order parameters and pulmonary diffusion capacity results.
Significance was analyzed after Bonferroni correction.The highest associations are described in bold.
| DLCOa | DLCOa (%) | DLCOc | DLCOc (%) | DLCO/AVc | DLCO/AVc (%) | AV (L) |
AV (%) |
|
|---|---|---|---|---|---|---|---|---|
| FrL | -0.65 <0.0001 |
-0.71 <0.0001 |
-0.43 <0.0005 |
-0.51 <0.0001 |
-0.06 ns |
-0.11 ns |
-0.51 <0.0001 |
-0.63 <0.0001 |
| α | -0.17 ns |
0.07 ns |
-0.29 ns |
-0.01 ns |
-0.17 ns |
-0.06 ns |
-0.26 ns |
-0.05 ns |
| FrC | 0.22 ns |
-0.07 ns |
0.31 ns |
0.00 ns |
-0.04 ns |
-0.08 ns |
0.41 0.0005 |
0.14 ns |
| β | 0.51 <0.0001 |
0.71 <0.0001 |
0.23 ns |
0.51 <0.0001 |
-0.16 ns |
-0.03 ns |
0.39 <0.001 |
0.65 <0.0001 |
| G | -0.54 <0.0001 |
-0.51 <0.0001 |
-0.42 <0.0005 |
-0.44 <0.0005 |
0.01 ns |
-0.02 ns |
-0.54 <0.0001 |
-0.57 <0.0001 |
| H | -0.08 ns |
0.23 ns |
-0.24 ns |
0.10 ns |
-0.10 ns |
0.00 ns |
-0.24 ns |
0.06 ns |
| η | -0.51 <0.0001 |
-0.71 <0.0001 |
-0.25 ns |
-0.52 <0.0001 |
0.15 ns |
0.02 ns |
-0.41 <0.001 |
-0.65 <0.0001 |
DLCO: carbon monoxide diffusion capacity; AV: alveolar volume; diffusion coefficient (DLCO/AV); a: values without correction; c: corrected for the concentration level of hemoglobin; %: percentage of the predicted values.