Variable Label (VAR)	Variable Name	Category	N(%)	N(Missing)	Mean(SD)	Median(Q1,Q3)	Range of Values	
A1. Blind_ID	BLIND_ID			503(0)	464.31(272.73)	438.00(216.00,709.00)	2.00-919.00	
								
A2. Age (years) at echocardiogram	ECHO_D_AGE_YEARS			503(0)	4.33(1.70)	4.56(2.72,5.98)	1.13-7.13	
								
A3. Study visit	VISIT	Pre-Fontan Echo	262(52.1)					
								
		Study visit 9 (year 6 Echo)	241(47.9)					
								
A5. Acceptable for analysis	ACCEPTABLE	Yes	503(100.0)					
								
A6. Image quality	IMGQUAL	1:Excellent	189(37.6)					
								
		2:Good	266(52.9)					
								
		3:Fair	48(9.5)					
								
B1. Left ventricle present	CLV_PRES	1:Yes	364(72.4)					
								
		2:No	139(27.6)					
								
B2. End-diastolic endocardial long axis dimension (2-D)	CLV_EDLAD2			268(235)	2.41(0.87)	2.33(1.72,3.02)	0.80-5.13	
								
B3. End-diastolic volume (Modified Simpsons)	CLV_EDV_MS			268(235)	3.02(2.82)	2.17(1.00,4.45)	0.07-21.43	
								
B4. End-systolic volume (Modified Simpsons)	CLV_ESV_MS			267(236)	2.33(2.19)	1.71(0.80,3.00)	0.04-20.64	
								
B5. Ventricular mass (Modified Simpsons)	CLV_VM_MS			238(265)	10.31(6.42)	8.95(5.80,13.30)	1.10-37.30	
								
C1. End-diastolic long axis dimension (2-D)	CRV_EDLAD2			416(87)	4.79(0.67)	4.77(4.36,5.17)	3.02-6.88	
								
C2. End-diastolic short axis dimension (2-D)	CRV_EDSAD2			416(87)	3.90(0.81)	3.80(3.32,4.47)	1.74-6.53	
								
C3. End-diastolic area	CRV_AEDAREA			414(89)	16.92(4.43)	16.49(13.87,19.50)	7.44-36.41	
								
C4. End-systolic area	CRV_AESAREA			414(89)	11.54(3.34)	11.24(9.43,13.23)	3.66-26.59	
								
C5. Subcostal dimension end-diastolic LAX	CRV_SDEDLAX			314(189)	4.50(0.59)	4.50(4.09,4.88)	2.85-6.89	
								
C6. Subcostal dimension end-systolic LAX	CRV_SDESLAX			314(189)	3.68(0.54)	3.63(3.34,4.04)	2.15-5.41	
								
C7. Short axis end-diastolic area	CRV_SAEDAREA			174(329)	13.86(4.69)	12.97(10.85,16.62)	3.79-33.07	
								
C8. Short axis end-systolic area	CRV_SAESAREA			173(330)	8.74(3.63)	8.15(6.38,10.44)	1.60-23.66	
								
C9. Heart rate	CRV_HR			171(332)	89.75(18.61)	91.00(76.00,101.00)	50.00-154.00	
								
C10. RV end-diastolic volume (Modified Simpson's) (mL)	CRV_EDVSIMP			157(346)	58.25(24.32)	53.40(41.60,67.90)	15.90-171.60	
								
C11. RV end-systolic volume (Modified Simpson's) (mL)	CRV_ESVSIMP			156(347)	31.73(16.15)	28.60(21.70,36.20)	6.00-111.40	
								
C12. RV ejection fraction (Modified Simpson's)	CRV_EFSIMP			155(348)	46.75(7.21)	46.62(42.01,52.27)	22.00-62.54	
								
D1. Neoaortic valve regurgitation	CNAV_REG	1:Yes	206(41.0)					
								
		2:No	294(58.4)					
								
		Missing	3(0.6)					
								
a. Severity	CNAV_SEV	1:Mild	180(35.8)					
								
		2:Moderate	25(5.0)					
								
		3:Severe	1(0.2)					
								
		Missing	297(59.0)					
								
D2. Anteroposterior proximal regurgitant jet width	CNAV_APRJW			16(487)	0.33(0.04)	0.34(0.30,0.36)	0.25-0.40	
								
D3. Transverse proximal regurgitant jet width	CNAV_TPRJW			20(483)	0.35(0.08)	0.32(0.30,0.39)	0.27-0.56	
								
D4. Ejection time	CNAV_ET			390(113)	257.99(33.68)	256.00(237.69,277.16)	162.00-449.00	
								
D5. Time velocity integral	CNAV_TVI			383(120)	17.51(4.68)	17.13(14.25,19.60)	8.00-42.30	
								
D6. Anteroposterior neoaortic annulus diameter	CNAV_ANAD			436(67)	1.72(0.29)	1.71(1.51,1.92)	1.01-2.65	
								
D7. Transverse neoaortic annulus diameter	CNAV_TNAD			423(80)	1.81(0.30)	1.79(1.58,2.00)	1.07-2.82	
								
E1. Anteroposterior valve annulus diameter	CTV_AVAD			470(33)	2.11(0.40)	2.10(1.81,2.37)	0.80-3.80	
								
E2. Transverse valve annulus diameter	CTV_TVAD			495(8)	2.24(0.41)	2.22(1.94,2.52)	0.85-3.44	
								
E3. Tricuspid valve regurgitation	CTV_TVREG	1:Yes	455(90.5)					
								
		2:No	47(9.3)					
								
		Missing	1(0.2)					
								
a. Severity	CTV_TVRSEV	1:Mild	367(73.0)					
								
		2:Moderate	68(13.5)					
								
		3:Severe	20(4.0)					
								
		Missing	48(9.5)					
								
E4. Anteroposterior proximal regurgitant jet width	CTV_APRJW			65(438)	0.34(0.09)	0.32(0.28,0.40)	0.19-0.60	
								
E5. Transverse proximal regurgitant jet width	CTV_TPRJW			76(427)	0.39(0.18)	0.34(0.30,0.42)	0.25-1.38	
								
E6. R-R interval --	CTV_RRINT			78(425)	668.18(123.53)	661.70(580.00,742.40)	446.33-1014.00	
								
E7. Summation wave	CTV_SUMWV	1:Yes	78(15.5)					
								
		2:No	358(71.2)					
								
		Missing	67(13.3)					
								
E8. Peak early velocity	CTV_PEV			430(73)	0.82(0.23)	0.79(0.65,0.94)	0.31-1.80	
								
E9. Peak atrial velocity	CTV_PAV			349(154)	0.65(0.21)	0.63(0.50,0.75)	0.19-1.40	
								
E10. A-wave duration	CTV_AWVDUR			244(259)	134.30(25.85)	133.24(116.00,153.00)	77.64-200.72	
								
E11. RV dP/dt	CTV_RVDPDT			180(323)	893.37(311.92)	864.50(696.00,1003.87)	427.00-3113.46	
								
F1. RV Ejection time (Doppler)	CRVD_RVET			393(110)	257.83(33.75)	256.00(236.60,277.16)	162.00-449.00	
								
F2. Tricuspid valve closure time (Doppler)	CRVD_TVC			433(70)	374.32(45.54)	370.00(344.76,401.00)	264.10-621.83	
								
F3. R-R interval	CRVD_RRI			413(90)	656.51(130.60)	637.30(563.52,721.00)	258.60-1192.20	
								
G1. Duration of flow reversal during atrial systole	CPVD_FLWRV			19(484)	105.29(21.54)	98.00(90.12,132.00)	71.83-141.96	
								
Multiple Text(s): H1. -R interval ----- H1.P-R interval	CTD_RRINT			371(132)	653.93(126.05)	634.00(561.80,714.76)	367.10-1112.60	
								
H2. Summation wave	CTD_SUMWV	1:Yes	56(11.1)					
								
		2:No	256(50.9)					
								
		Missing	191(38.0)					
								
H3. Peak atrial diastolic velocity	CTD_PADV			257(246)	6.30(2.08)	6.00(5.00,7.96)	1.00-16.38	
								
H4. Peak early diastolic velocity	CTD_PEDV			310(193)	9.11(2.91)	9.00(7.00,10.92)	2.92-22.00	
								
H5. Peak systolic velocity	CTD_PSV			310(193)	5.81(1.33)	5.70(4.90,6.67)	2.81-10.33	
								
H6. Ejection time	CTD_ET			234(269)	250.38(30.33)	248.30(229.84,270.36)	158.00-322.00	
								
H7. Isovolumic contraction acceleration	CTD_ISOCA			226(277)	33.76(25.27)	31.69(25.00,38.00)	11.00-379.20	
								
H8. Onset of ICT to end of IRT	CTD_ICTIRT			305(198)	402.91(49.53)	400.00(372.00,430.32)	229.41-693.00	
								
I1. Ascending neoaortic maximal diameter	CAD_ANAMAXD			426(77)	2.04(0.44)	1.99(1.71,2.28)	0.83-3.69	
								
I2. Distal arch to descending aorta CWD  peak velocity	CAD_CWDPV			386(117)	1.78(0.52)	1.68(1.40,2.06)	0.80-3.94	
								
J1. Comments	COMNTYN	1:Yes	238(47.3)					
								
		2:No	265(52.7)					
								
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