Table 3

Regression equations of the different variables

Variable	Regression equation	r ²
RVAWd (mm)	2.8857^*BSA^0.1015	0.9668
RVDD (mm)	7.4461^e^{0.4587^BSA}	0.9898
IVSd (mm)	5.8055^*BSA^0.3688	0.9772
IVSs (mm)	7.9158^*BSA^0.3603	0.9865
LVEDD (mm)	38.537^*BSA^0.4509	0.9896
LVESD (mm)	24.231^*BSA^0.4469	0.9972
LVPWd (mm)	6.0963^*BSA^0.3988	0.9854
LVPWs (mm)	9.9845^*BSA^0.4238	0.9908
AoD (mm)	19.443^*BSA^0.4578	0.9981
PAD (mm)	8.2037^*Ln^(BSA)+23.968	0.9818
LAD (mm)	24.695^*BSA^0.3911	0.9975

The regression equation were calculated as best fitting regressions to the 50% centile line. The multiple squared correlation coefficient (r ²) donates the correlation between the regression equation and the 50% centile.
See table 1 for key to abbreviations.