Table 3

Correlation of haemodynamic and CTPA predictors with group classification (severity) and in-hospital mortality

	Severity		Mortality
	τ_b	p value	τ_b	p value
τ_b, Kendall’s tau-B correlation coefficient.
Pulmonary obstruction index	0.38	<0.001	0.11	0.145
RV/LV ratio	0.46	<0.001	0.24	0.002
Superior vena cava diameter	0.21	0.007	0.26	<0.001
Azygos vein diameter	0.27	<0.001	0.27	<0.001
Inferior vena cava regurgitation	0.43	<0.001	0.23	0.001
Systolic blood pressure	−0.27	<0.001	−0.26	<0.001
Heart rate	0.16	0.027	0.15	0.032
Systolic pulmonary pressure	0.27	<0.001	−0.015	0.84