Time-varying serum albumin levels and all-cause mortality in prevalent peritoneal dialysis patients: a 5-year observational study

Table 1 Baseline characteristics and clinical features of the study population according to different albumin levels (N = 302)

Variable	24 months albumin rate reached 3.5(g/dL)				P-value
	Higher rate (n = 205)		Lower rate (n = 97)
	Mean	SD	Mean	SD
Dialysis vintage (years)	8.07	2.95	7.58	3.49	0.207
Age (years)	50.22	12.65	54.75	14.38	0.006
Gender (n, %)					0.241
Male	95	46.34	38	39.18
Female	110	53.66	59	60.82
Diabetes Mellitus (n, %)	31	15.12	20	20.62	0.234
Blood analysis
Hb (g/dL)	10.70	1.41	10.06	1.43	< 0.001
Albumin (g/dL)	3.97	0.30	3.45	0.40	< 0.001
K (meq/L)	4.30	0.75	4.18	0.71	0.181
Ca (mg/dL)	9.29	0.75	9.40	0.85	0.270
P (mg/dL)	5.46	1.36	5.12	1.08	0.033
iPTH (pg/mL)^a	100	(41.6–377)	93	(31.6–203)	0.594
ALP (U/L)^a	88	(67–116)	99	(73–156)	0.018
Cholesterol (mg/dL)^a	181	(161–205)	178	(158–197)	0.157
Triglyceride (mg/dL)^a	133	(91–196)	115	(82–193)	0.213
Urine volume 24HR (mL)^a	600	(400–920)	600	(400–720)	0.252
Kt/V	2.14	0.36	2.00	0.40	0.004
Weekly urine Ccr^a	14.43	(9.92–20.73)	14.43	(13.93–14.425)	0.499
Weekly total Ccr^a	59.01	(50.74–69.1)	59.01	(50.94–65.25)	0.475
nPCR (g/kg/day)	1.08	0.25	1.06	0.23	0.476

Patients aged < 18 years (n = 2) were excluded
^aMedian (interquartile range)
P-values of categorical variables were estimated using the χ2 test, and those for continuous variables were estimated using the 2-sample t-test
Hb hemoglobin, K potassium, Ca corrected serum calcium, P phosphate, iPTH intact parathyroid hormone, ALP alkaline phosphate, Ccr creatinine clearance rate, nPCR normalized protein catabolic rate

ISSN: 1471-2369