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Table 1 Descriptive variables for the study cohort - all patients undergoing pre-TCPC CMR under general anaesthetic 2007 - 2014 (n = 100).

From: Cardiac MR-derived indices are stronger predictors of resource use and risk than jugular venous pressure, in paediatric patients with functionally single ventricles, prior to completion of total cavopulmonary connection (TCPC)

VARIABLE MEDIAN (Range) or FRACTION
Total cohort 100
Male 63/100
Age at BCPC (months) 6.9 (1.2 - 80.3)
Age at CMR (months) 40.4 (17.7 - 121.2)
Weight at CMR (kg) 14.5 (9.4 - 40)
Age at TCPC (years) 3.9 (2.1 - 10.5)
Follow-up period from CMR (years) 4.2 (0.3 - 9.4)
Dominant RV : Dominant LV 55/100
Arch reconstruction or DKS 54 / 100
Branch PA stenosis or hypoplasia 60/100
Number with native PA forward flow 17/100
Jugular venous pressure at CMR (mmHg) 12 (5 - 20)
ntricular ejection fraction (%) 56 (36 - 77)
A-V valve regurgitant fraction (%) 5 (0 - 25)
Net PA flow (L/min) 1.3 (0.6 - 3.6)
Net Ao flow/BSA (Cardiac index) (L/min/m2) 4.4 (2.5 - 7.6)
SVC / IVC flow ratio 1.36 (0.50 - 2.21)
Proportion collateral flow of pulm venous return (%) 35 (0 - 68)
Number with obvious SVC offloading veins (Score = 2) 33 / 100
Peri-TCPC hospital length of stay (days) 12 (4 - 69)
Death following TCPC 4 / 100