Table 3 Correlation coefficients investigating the relationship between meanPAvel and comparator parameters measured during initial assessment

RVEF

0.43 [−0.01 to 0.74]

0.055

0.66** [0.31 to 0.85]

0.002

RVESVI

−0.38 [−0.71 to 0.09]

0.10

−0.70*** [−0.88 to −0.36]

0.0006

NTpBNP

−0.19 [−0.61 to 0.30]

0.44

−0.21 [−0.62 to 0.29]

0.40

PVRI

−0.81**** [−0.93 to −0.57]

<0.0001

−0.88*** [−0.95 to −0.70]

<0.0001

CI

0.65** [0.30 to 0.85]

0.002

0.41 [−0.03 to 0.72]

0.07

6MWD

0.43 [−0.04 to 0.74]

0.07

0.58** [0.17 to 0.82]

0.009

Elastic modulus

−0.61** [−0.83 to −0.23]

0.004

−0.65** [−0.85 to −0.29]

0.001

VA coupling

−0.49* [−0.77 to −0.05]

0.03

−0.75*** [−0.90 to −0.46]

0.0001

Maximum CI

0.60** [0.22 to 0.83]

0.005

0.65** [0.29 to 0.85]

0.002

Minimum PVRI

−0.76** [−0.90 to −0.47]

0.001

−0.74*** [−0.94 to −0.62]

0.0002