Table 1.

Basic data and comparative analysis results of groups A and B

Group	A(25)	B(27)	t	P
Age (year)	65.36 ± 4.94	63.92 ± 5.37	1.00	0.32
Pre-V	1.13 ± 0.40	1.25 ± 0.55	0.87	0.39
AL (mm)	23.38 ± 1.04	23.36 ± 1.04	0.08	0.94
D	−0.69 ± 1.81	−0.58 ± 2.73	− 0.17	0.84
BD (μm)	913.38 ± 311.00	1038.77 ± 280.26	−1.49	0.14
MLD (μm)	485.42 ± 173.66	604.69 ± 159.72	−2.53	0.02
H (μm)	407.21 ± 89.00	407.50 ± 77.13	−0.01	0.99
CCT (μm)	201.29 ± 61.17	224.85 ± 74.42	−1.22	0.23
Duration (month)	5.63 ± 9.56	5.96 ± 4.30	−1.65	0.87
Post-V	0.24 ± 0.16	0.51 ± 0.31	3.40	2.81E-4
Increase-V	0.90 ± 0.38	0.74 ± 0.44	1.34	0.19