Table 2.

Changes in Anthropometric Measurements for Each Time Period

Time period	Change in Z-score
	Mean ± Standard Deviation (n)
	Time between measurements (months)	All subjects*	MBTS	RVPAS	P-value comparing shunts**
Weight-for-age Z-score
Birth to 6 years	70.0±3.5	−0.34±1.30 (265)	−0.38±1.37 (125)	−0.30±1.23 (140)	0.62
Pre-Fontan to 6 years	36.0±10.3	−0.07±0.82 (237)	−0.01±0.89 (114)	−0.11±0.76 (123)	0.36
Height-for-age Z-score
Birth to 6 years	70.0±3.5	−1.04±1.65 (259)	−1.03±1.59 (120)	−1.05±1.71 (139)	0.91
Pre-Fontan to 6 years	36.1±10.3	−0.09±1.10 (231)	0.00±1.18 (109)	−0.18±1.01 (122)	0.20
Body Mass Index-for-age Z-score
Birth to 6 years	70.0±3.6	0.54±1.72 (246)	0.43±1.55 (115)	0.64±1.85 (131)	0.34
Pre-Fontan to 6 years	36.1±10.3	0.04±1.12 (231)	0.07±1.16 (109)	0.02±1.10 (122)	0.76

MBTS, modified Blalock Taussig shunt; RVPAS, right ventricle to pulmonary artery shunt

^*Each mean was based on data available at the respective time point

^**The p-value used to compare shunts was derived from a two-sample t-test