Table 2.
Partial correlation matrix by setting age as the covariate
| SBP | DBP | D/S ratio | PP | |
|---|---|---|---|---|
| Trunk | ||||
| PSV | −0.0174 (p = 0.8325) | −0.215 (p = 0.0082) | −0.256 (p = 0.0016) | 0.151 (p = 0.0654) |
| EDV | −0.050 (p = 0.5450) | 0.138 (p = 0.0928) | 0.220 (p = 0.0069) | −0.177 (p = 0.0305) |
| RI | 0.054 (p = 0.5139) | −0.342** (p < 0.0001) | −0.481** (p < 0.0001) | 0.343** (p < 0.0001) |
| Hilum | ||||
| PSV | 0.022 (p = 0.7958) | −0.172 (p = 0.0406) | −0.254 (p = 0.0023) | 0.165 (p = 0.0493) |
| EDV | 0.117 (p = 0.1645) | 0.183 (p = 0.0295) | 0.060 (p = 0.4752) | 0.008 (p = 0.929) |
| RI | 0.024 (p = 0.7812) | −0.324** (p < 0.0001) | −0.430** (p < 0.0001) | 0.288* (p = 0.0005) |
| Segmental | ||||
| PSV | 0.066 (p = 0.424) | −0.136 (p = 0.0981) | −0.267 (p = 0.0010) | 0.212 (p = 0.0091) |
| EDV | 0.067 (p = 0.418) | 0.156 (p = 0.0581) | 0.115 (p = 0.1621) | −0.043 (p = 0.5996) |
| RI | 0.036 (p = 0.665) | −0.336** (p < 0.0001) | −0.496** (p < 0.0001) | 0.354** (p < 0.0001) |
| Interlobar | ||||
| PSV | 0.062 (p = 0.4480) | −0.081 (p = 0.3226) | −0.188 (p = 0.0213) | 0.147 (p = 0.0720) |
| EDV | 0.054 (p = 0.5108) | 0.209 (p = 0.0106) | 0.191 (p = 0.0200) | −0.097 (p = 0.2381) |
| RI | 0.043 (p = 0.5977) | −0.331** (p < 0.0001) | −0.483** (p < 0.0001) | 0.329** (p < 0.0001) |
D/S ratio ratio of diastolic to systolic blood pressure, EDV end-diastolic velocity, PP pulse pressure, PSV peak systolic velocity, RI resistive index
*p < 0.001; **p < 0.0001