Table 2.

Changes in pulse wave velocity after surgery for each device.

	Before	After	p	Mean of difference	SD of difference	95% CI	Cohen's d
Najuta	2,040 ± 346.8 cm/s	2,084 ± 390.5 cm/s	0.136	43.83 cm/s	322 cm/s	−35.31 to 123.0 cm/s	0.14
Non-Najuta	2,058 ± 422.1 cm/s	2,263 ± 462.8 cm/s	<0.001	204.4 cm/s	315.1 cm/s	146.7 to 262.1 cm/s	0.65
TAG	2,090 ± 485.9 cm/s	2,300 ± 512.1 cm/s	0.025	209.6 cm/s	447.6 cm/s	0.126 to 419.1 cm/s	0.47
Relay	2,102 ± 465.3 cm/s	2,206 ± 444.4 cm/s	0.004	103.7 cm/s	157 cm/s	30.2 to 177.2 cm/s	0.66
Valiant	1,969 ± 330.2 cm/s	2,186 ± 378.7 cm/s	<0.001	216.9 cm/s	345.3 cm/s	87.94 to 345.8 cm/s	0.63
Zenith	2,084 ± 431.7 cm/s	2,321 ± 500.6 cm/s	<0.001	237.2 cm/s	276.9 cm/s	155.9 to 318.5 cm/s	0.86