Table 2

Spearman’s rho non-parametric correlations among the relative size of components of CBAN, p = significance (2-tailed)

Correlations: Spearman’s rho
BARt P2Lft P2Rt PcomA mid diaLft PcomA mid diaRt P1Lft P1
BArho1.000.17*
p=0.045		−0.02−0.39**−0.45**0.25*
p=0.015		0.29**
p=0.003
N1451451451451459898
Rt P2rho0.17*
p=0.043		1.000.36**
p<0.001		−0.35**−0.29**0.23*
p=0.020		0.17
N1451451451451459898
Lft P2rho−0.020.36**
p<0.001		1.00−0.21*−0.140.30**
p=0.003		0.19
N1451451451451459898
RtPcomA mid diarho−0.39**−0.35**−0.21*1.000.46**
p<0.001		−0.60**−0.39**
N1451451451451459898
LftPcomA mid diarho−0.45**−0.29**−0.140.46**1.00−0.32**−0.64**
N1451451451451459898
RtP1rho0.25*
p=0.015		0.23*
p=0.020		0.30**
p=0.003		−0.60**−0.32**1.000.35**
p<0.001
N98989898989898
Lft P1rho0.29**
p=0.003		0.170.19−0.39**
p<0.001		−0.64**0.35**
p<0.001		1.00
N98989898989898

  • *Correlation is significant at p=0.05 level (two-tailed).

  • †Correlation is significant at p=0.01 (two-tailed).

  • BA, relative size of distal basilar artery; CBAN, cerebral basal arterial network; Lft, left; Lft P1, relative size of left P1 at mid-point; Lft P2, relative size of left proximal P2; LftPcomA mid dia, relative size of left PcomA at mid-point; P1, first part of PCA; P2, second part of PCA; PCA, posterior cerebral artery; PcomA, posterior communicating artery; Rt, right; Rt P1, relative size of right P1 at mid-point; Rt P2, relative size of right proximal P2; RtPcomA mid dia, relative size of right PcomA at the mid-point.