Table 4.

Comparison of patient clinical variables between Development and Composite samples

Patient clinical variables	Child			Adolescent
	Development	Composite	P-value	Development	Composite	P-value
Type of heart disease (% congenital)	63.8	86.8	<0.001	54.5	74.0	<0.001
Type of congenital heart disease (% two-ventricle)	76.9	79.3	0.511	83.0	84.7	0.623
Number of prior catheterization/interventions [median (range)]	1 (0–16)	1 (0–30)	0.865	1 (0–20)	1 (0–50)	<0.001
Number of prior cardiac surgeries [median (range)]	1 (0–6)	1 (0–10)	<0.001	0 (0–8)	1 (0–20)	<0.001
Number of doctor visits in past year [median (range)]	4 (0–40)	3 (0–30)	0.031	3 (0–50)	3 (0–100)	0.446
Time since last hospitalization—years [median (range)]	4 (0–12)	5 (0–12)	0.919	4 (0–18)	4 (0–18)	0.173

A P-value<0.008 was determined to be statistically significant