Table 3 Univariable and multivariable linear regression analyses of parameters associated with PVT

PV diameter, mm

1.09 (0.93–1.28)

0.31

SMV diameter, mm

1.17 (0.95–1.45)

0.14

SV diameter, mm

1.04 (0.91–1.18)

0.59

Angulation of SV and SMV

0.91 (0.86–0.95)

 < 0.0001

0.90 (0.85–0.95)

 < 0.0001

Curvature of SV

0.82 (0.03–25.67)

0.91

LPV diameter, mm

1.01 (0.88–1.16)

0.87

RPV diameter, mm

0.93 (0.83–1.04)

0.18

Angulation of LPV and RPV

0.99 (0.97–1.02)

0.63

MAX PV diameter, mm

1.141.0–1.31)

0.06

0.95 (0.56–1.62)

0.86

MIN PV diameter, mm

0.97 (0.83–1.15)

0.75

EVL/EIS history

2.5 (0.89–6.99)

0.08

2.20 (0.49–9.91)

0.30

PV length, mm

0.96 (0.92–1.01)

0.12

Angle of PV

0.94 (0.90–0.98)

0.005

0.96 (0.89–1.04)

0.34

Curvature of PV

0.007

0.12

Area of PV

1.01 (1.0–1.01)

0.07

1.02 (0.96–1.08)

0.53

Circumference of PV

1.03 (0.99–1.08)

0.13

Hydraulic diameter of PV

1.14 (0.99–1.31)

0.07

0.73 (0.17–3.19)

0.67