Skin Perfusion Pressure Is a Prognostic Factor in Hemodialysis Patients

Table 2

Recategorization of patient characteristics with a skin perfusion pressure (SPP) cutoff value of 70 mm Hg. We recategorized patients into two SPP groups: Groups 1 and 2: <70 and Group 3: ≥70. 𝑃 value refers to Student’s 𝑡-test or chi-square analysis.

	Groups 1 and 2	Group 3	𝑃 value
	SPP < 70	SPP ≥ 70	Group 1 and 2 versus 3
𝑛	114 (31%)	259 (69%)
Age	72.3±11.1	71.0±9.0	0.282
Gender (M/F)	65/49	142/117	0.695
Dialysis duration (Month)	101.4±82.9	100.0±74.6	0.875
CVD (+)	61 (54%)	103 (40%)	0.014
DM (+)	69 (61%)	102 (39%)	<0.001
Use of activated vitamin D (+)	79 (69%)	217 (73%)	0.001
Current smoking (+)	22 (20%)	33 (13%)	0.100
Baseline SPP (mm Hg)	54.3±12.9	88.3±14.6	<0.001
Use of anticoagulant, antiplatelet	86 (75%)	87 (34%)	<0.001
Intervention or amputation	16 (14%)	1 (0.4%)	<0.001
Death	25 (22%)	28 (11%)	0.005
CVD	12	11	0.523
Infection	3	7	0.227
Cancer	4	6	0.614
Others	6	4	0.367