Skin Perfusion Pressure Is a Prognostic Factor in Hemodialysis Patients

Table 1

Characteristics of the 373 hemodialysis patients. We categorized the patients into three skin perfusion pressure (SPP) groups: Group 1, <50; Group 2, 50 ≤ SPP < 70; and Group 3, SPP ≥ 70, based on a healthy SPP value from volunteers. 𝑃 value refers to overall ANOVA or chi-square analysis.

	ALL	Group 1	Group 2	Group 3	𝑃 value
		SPP < 50	50 ≤ SPP < 70	SPP ≥ 70	(ANOVA)
𝑛	373	30 (8%)	84 (23%)	259 (69%)
Age	71.4±9.7	71.5±11.4	72.6±11.1	71.0±9.0	0.437
Gender (M/F)	207/166	15/15	50/34	142/117	0.617
Dialysis duration (Month)	100.4±77.1	103.6±88.1	100.6±81.5	100.0±74.6	0.970
CVD (+)	164 (44%)	13 (43%)	48 (57%)	103 (40%)	0.020
DM (+)	171 (46%)	21 (70%)	48 (57%)	102 (39%)	<0.001
Use of activated vitamin D (+)	267 (72%)	23 (77%)	56 (67%)	217 (73%)	0.003
Current smoking (+)	55 (15%)	6 (21%)	16　(20%)	33　(13%)	<0.001
Baseline SPP (mm Hg)	77.9±21.1	35.6±8.2	61.0±5.7	88.3±14.6	<0.001
Use of anticoagulant, antiplatelet	173 (46%)	20 (67%)	66 (79%)	87 (34%)	<0.001
Periferal angioplasty	11 (2.9%)	6 (20%)	4 (4.8%)	1 (0.4%)	<0.001
Amputation	6 (1.6%)	5 (17%)	1 (1.2%)	0 (0%)	<0.001
Death	53 (14%)	9 (30%)	16 (19%)	28 (11%)	0.006
CVD	23	4	8	11	0.055
Infection	10	0	3	7	0.582
Cancer	10	1	3	6	0.804
Others	10	4	2	4	<0.001