Factors Associated with Above and Under 5-Year Survival in Peritoneal Dialysis Patients

Figures & data

Table 1. Demograhics and baseline characteristics of patients.

Variable	Non-survival (<5 years) (n = 71)	Survival (≥5 years) (n = 83)	p
Males/females (n)	32/39	32/51	0.77
Mean age (years)	56.6 ± 15.7	42 ± 13.8	0.36
Presence of DM (%)	38.5	15.9	0.003
Lower education (%)	84.1	64.3	0.04
HD history before PD (%)	31.4%	25.6%	0.42
Preference of PD: themselves/mandatory (%)	51.5/48.5	90.2/9.8	0.001
PD exchanges: themselves/helped (%)	62.7/37.3	91.5/8.5	0.001

Note: DM, diabetes mellitus; HD, hemodialysis; PD, peritoneal dialysis.

Table 2. Clinical and laboratory data of two groups at the beginning of PD.

	Non-survival (<5 years) (n = 71)	Survival (≥5 years) (n = 83)	p
Serum creatinine	8 ± 2.9	9.3 ± 3	0.01
PET: H & HA & L & LA (%)	28.8/41.3/3.8/26.3	21.4/35.7/14.3/28.6	0.01
Total WCCr	50.75 ± 18.53	67.22 ± 17.6	0.001
Total Kt/V	1.86 ± 0.39	2.34 ± 0.56	0.001
UF (mL/day)	978 ± 462	1089 ± 421	0.12
Systolic blood pressure (mm Hg)	115.9 ± 28.6	115.2 ± 26.7	0.87
Diastolic blood pressure (mm Hg)	72.5 ± 16	74.3 ± 15.8	0.49
RRF (mL/day)	253 ± 331	410 ± 440	0.01
Calcium (mg/dL)	8.77 ± 1.0	9.1 ± 1.8	0.05
Phosphorus (mg/dL)	4.96 ± 1.9	5.1 ± 1.3	0.43
Intact parathormone (pg/mL)	237 ± 224	351 ± 299	0.01
Albumin (g/dL)	3.3 ± 0.6	3.9 ± 0.5	0.001
Hemoglobin (g/dL)	10.5 ± 2	10.6 ± 1.6	0.83
Ferritin (ng/mL)	550 ± 612	372 ± 312	0.06

Note: PET, Peritoneal equilibrium test; RRF, residual renal function; H, high; HA, high-average; L, low; LA, low-average; WCCr, weekly creatinine clearance; UF, ultrafiltration.

Table 3. Comparison of baseline and last parameters of patients surviving 5 years or more.

	Baseline survival (>5 years) (n = 83)	Last survival (>5 years) (n = 41)	p
Serum creatinine	9.3 ± 3.9	8.6 ± 2.3	0.09
BMI	23.3 ± 4.2	24.4 ± 3.1	0.36
Albumin (g/dL)	3,9 ± 0,5	4.2 ± 0.5	0.03
Calcium (mg/dL)	9.1 ± 1.8	9.4 ± 0.8	0.01
Phosphorus (mg/dL)	5.1 ± 1.3	4.2 ± 1.1	0.001
Intact parathormone (pg/mL)	351 ± 299	442 ± 508	0.19
Hemoglobin (g/dL)	10.6 ± 1.6	11.5 ± 2.0	0.001
Systolic blood pressure (mm Hg)	115.2 ± 26.7	118.4 ± 31.3	0.50
Diastolic blood pressure (mm Hg)	74.3 ± 15.8	72.5 ± 17.3	0.59
RRF (mL/day)	410 ± 440	78 ± 276	0.001
UF (mL/day)	1089 ± 421	1010 ± 524	0.25

Note: BMI, body mass index; RRF, residual renal function; UF, ultrafiltration.

Table 4. Causes of death according to groups.

Cause of death (%)	Non-survival (<5 years) (n = 71)	Survival (≥5 years) (n = 21)
Cardiovascular	25.3	47.6
Infectious events	49.3	28.5
Cerebrovascular	12.6	4.8
Malignancy	5.7	4.8
Non-known	7.1	14.3

Note: There was no statistical relationship between comparison of causes of death in both groups (p > 0.05).