Table 4.

Bonferroni correction for multiple comparison of mean VTI and CO

	Group (I)	Group (J)	Mean difference (I–J)	p-value
LVOT VTI	Below the valve	Hinges of the valve	2.74 ± 0.4	< 0.001
	Hinges of the valve	Tip of the valve	1.87 ± 0.3	< 0.001
	Tip of the valve	Below the valve	4.60 ± 0.1	< 0.001
LVO	Below the valve	Hinges of the valve	34.08 ± 7.7	< 0.001
	Hinges of the valve	Tip of the valve	21.76 ± 1.6	0.016
	Tip of the valve	Below the valve	55.84 ± 6.1	< 0.001
RVOT VTI	Below the valve	Hinges of valve	3.15 ± 0.2	< 0.001
	Hinges of the valve	Tip of the valve	2.55 ± 0.2	< 0.001
	Tip of the valve	Below the valve	5.70 ± 0.5	< 0.001
RVO	Below the valve	Hinges of the valve	73.09 ± 10.7	0.001
	Hinges of the valve	Tip of the valve	59.10 ± 20.9	0.008
	Tip of the valve	Below the valve	132.19 ± 31.7	< 0.001

Data reported as mean ± SD

VTI velocity time integral, CO cardiac output, LVOT left ventricular outflow tract, RVOT right ventricular outflow tract, LVO left ventricular output, RVO right ventricular output

Bonferroni correction P < 0.017