Impact of stage-specific limb function exercises guided by a self-management education model on arteriovenous fistula maturation status

Table 3 Maturity status of arteriovenous fistula (score, mean ± SD)

Time	Group	Observation group	Control group	t	P value
4 wk after surgery	Blood flow	511.51 ± 16.27a	506.06 ± 10.23c	1.68	0.10
	Intravascular diameter	5.13 ± 0.10a	5.00 ± 0.04c	7.10	0.00
	Depth from epidermis	2.62 ± 0.10a	3.05 ± 0.11c	-17.45	0.00
8 wk postoperatively	Blood flow	733.28 ± 10.51	707.00 ± 10.25	10.59	0.00
	Intravascular diameter	5.88 ± 0.27	5.18 ± 0.10	14.42	0.00
	Depth from epidermis	2.18 ± 0.10	2.62 ± 0.10	-18.00	0.00

^aP < 0.05 at the 4-wk postoperative point when juxtaposed with the 8-wk postoperative point within the observation group.

^cP < 0.05 at the 4-wk postoperative stage when compared with the 8-wk postoperative interval in the control group.