Table 1.

Echocardiographic reproducibility analysis.

	Derivation phase	Validation phase
	Interobserver	Intraobserver	Interobserver
	ICC (95% CI), p-value	ICC (95% CI), p-value	ICC (95% CI), p-value
RVWTd	0.69 (0.45–0.82), <0.01	0.9801(0.95–0.99), <0.001	0.9825 (0.96–0.99), <0.001
PAAT	0.86 (0.74–0.93), <0.01	0.9376 (0.85–0.97), <0.001	0.8682 (0.7–0.94), <0.001
PAET	0.53 (0.24–0.73), 0.003	0.6052 (0.31–0.84), 0.009	0.7853 (0.54–0.91), 0.007
PAAT/ET	0.90 (0.81–0.95), <0.01	0.8965 (0.76–0.96), <0.001	0.8428 (0.65–0.93), <0.001

RVWTd: right ventricular wall thickness in diastole; PAAT: pulmonary artery acceleration time; PAET: pulmonary artery ejection time.