Table 2.

Measures at first visit ⁽²⁾ and univariate survival analysis from first visit

Measure	Units	SD (n103)	All	Surviving		Not Surviving		Cox Hazard Ratio(1) and 95% CI
			N	N	Mean	N	Mean	Cox Hazard Ratio	Lower	Upper	p-value
Peak oxygen consumption	L/min	0.26	103	80	0.82	23	0.71	0.67	0.43	1.05	0.08
Peak oxygen consumption	ml/min/kg	2.84	103	80	11.0	23	11.0	0.95	0.62	1.45	0.80
Ventilatory equivalent for CO2 at the anaerobic threshold	-	12.6	103	80	47.0	23	54.2	1.48	1.05	2.09	0.03
Peak Work Rate	Watts	25.9	96	75	54.6	21	47.8	0.78	0.49	1.24	0.30
Rest Systolic Blood Pressure	mmHg	17.4	96	74	123	22	121	0.94	0.60	1.47	0.79
Peak Systolic Blood Pressure	mmHg	27.3	97	75	159	22	152	0.80	0.53	1.21	0.29
Rest Diastolic Blood Pressure	mmHg	12.4	91	70	76.9	21	76.4	1.04	0.68	1.58	0.86
Peak Diastolic Blood Pressure	mmHg	17.2	91	70	87	21	82	0.94	0.60	1.48	0.80
Anaerobic threshold	L/min	0.19	90	68	0.61	22	0.51	0.53	0.32	0.90	0.02
End-tidal CO2 pressure at the anaerobic threshold	mmHg	6.2	96	77	28.5	19	25.0	0.62	0.39	0.97	0.04
Peak Heart Rate	bpm	19.5	94	73	132	21	135	1.09	0.70	1.71	0.69
Weight	kg	20.6	103	80	75.4	23	67.1	0.72	0.46	1.13	0.16
Non-Survival Among:
				NYHA II		NYHA 3-4
New York Heart Association Functional Class	3-4 vs. 2		103	0/14 =0%		23/89 =25.8%					0.03
				No Shunt		Shunt
Visit 1	Yes / No		103	13/64 =20.3%		10/39 = 25.6%		1.71	0.74	3.97	0.21
Visit 2	Yes / No		102	5/70 = 7.1%		18/32 = 56.2%		10.6	3.87	28.8	<0.0001

⁽¹⁾Hazard ratio for non-survival corresponding to a 1 SD increase in the measure.

⁽²⁾Shunt ⁽²⁾ refers to shunt status at second visit and survival from second visit.