Table 1.

Patient demographics

	Control	WBS Subject	P Value
n	18	18
Female, %	72.2	72.2
Age, yr	[17.35–26.7]	[17.40–27.85]
BMI, kg/m2	[20.05–26.2]	[18.33–26.80]
EF >60%	100	100
%CT surgery	0	16.7	<0.01b

Values are percentages and medians [interquartile ranges]. P values were derived from a Mann–Whitney U test^b. BMI, body mass index; EF, ejection fraction; CT, cardiothoracic; WBS, Williams–Beuren syndrome.