Table 3.

Changes in vein diameter (μm) at baseline vs. different time points post-treatment between the IVC+PRP group and the PRP group.

	Baseline	6m	t	P	12 m	t	P	18 m	t	P	24 m	t	P
IVC+PRP (n = 50)	363.79 ± 24.95	354.01 ± 27.23	1.87	0.06	334.23 ± 24.71	5.95	< 0.01	326.05± 28.28	7.08	< 0.01	325.6 ± 25.16	7.61	< 0.01
PRP (n = 32)	366.11 ± 27.67	359.49± 27.89	0.95	0.34	363.81 ± 19.77	0.38	0.70	368.99± 26.71	0.42	0.67	364.34± 24.10	0.27	0.79
t	0.39	0.88			5.70			6.85			6.90
P	0.70	0.38			< 0.01			< 0.01			< 0.01

m, months.