Table 2.
Correlations between quantitative CT measures in COPDGene subjects
| |
Correlations |
|||||||
|---|---|---|---|---|---|---|---|---|
| N | Mean(SD) | %emph Insp -950 | Exp -856 | E/I mean lung atten. | RVC 856–950 | Residuals | SWRA Pi10 | |
| %emphysema Insp -950 |
8517 |
6.2 (9.7) |
-- |
|
|
|
|
|
| %Exp -856 |
8517 |
21.9 (19.9) |
0.83† |
-- |
|
|
|
|
| E/I mean lung attenuation |
8517 |
0.87 (0.07) |
0.51† |
0.80† |
-- |
|
|
|
| RVC 856–950 |
8517 |
−0.37 (0.18) |
0.37† |
0.48† |
0.58† |
-- |
|
|
| Residuals |
8517 |
0 (11.2) |
0 |
0.56† |
0.67† |
0.32† |
-- |
|
| SRWA Pi10 (mm) | 2867 | 3.75 (0.12) | 0.06* | 0.13† | 0.23† | 0.46† | 0.15† | -- |
Pearson correlation coefficients are shown.
*p < 0.01.
†p < 0.0001.