Table 2.

Comparision of sonographic carotid artery measures in three groups

Variables	Controls (n = 84)	Hemodialysis (n = 31)	RT (n = 31)	aP Values
Carotid intima-media thickness (μm)	529.7 ± 131.8	561.9 ± 147.7*	480.5 ± 90.3#	0.045
Pulse wave velocity (m/s)	6.68 ± 2.25	7.87 ± 2.25*	8.05 ± 2.17†	0.004
Velocity time integral (m)	0.2 ± 0.1	0.2 ± 0.1	0.2 ± 0.1	0.250
Peak systolic velocity (cm/s)	64.4 ± 19.9	56.6 ± 20.3	49.9 ± 14.5†	0.002
End diastolic velocity (cm/s)	16.27 ± 6.5	17.5 ± 10.5	15.9 ± 7.3	0.702
Mean flow velocity (cm/s)	26.9 ± 7.4	27.5 ± 10.1	24.8 ± 7.7	0.388
Pulsatility index	1.8 ± 0.6	1.6 ± 0.7*	1.4 ± 0.4†	0.003
Resistance index	0.7 ± 0.2	0.7 ± 0.2	0.7 ± 0.2	0.197
S/D ratio	4.3 ± 1.2	4.1 ± 2.1	3.4 ± 0.9†	0.017

^aIn three groups, Chi-squared test or ANOVA test was used to compare the distribution of CIMT, PWV, VTI, PSV, EDV, MFV, PI, RI and S/D ratio

^*P<0.05, ^†P < 0.01 compared with the control group; ^#P<0.05, ^‡P < 0.01 compared with the hemodialysis group