Table 5.

Parameters at a month after treatment

	APD group (n = 42)	P	APD–CAPD group (n = 28)	P	CAPD group (n = 26)	P
Toxins
Blood urea nitrogen (mmol/L)	14.07 ± 4.76	0.000	13.42 ± 4.79	0.001	11.54 ± 3.71	0.000
Creatinine (umol/L)	694.40 ± 186.75	0.003	610.20 ± 185.66	0.004	638.10 ± 211.03	0.010
Uric acid (umol/L)	372.00 ± 79.12	0.002	358.30 ± 113.98	0.045	382.50 ± 82.38	0.035
iPTH (pg/mL)	321.20 ± 180.91	0.044	306.3 ± 138.85	0.014	305.3 ± 159.74	0.017
Electrolytes
Serum potassium (mmol/L)	4.22 ± 0.63	0.005	4.15 ± 0.46	0.029	4.39 ± 0.59	0.210
Serum calcium (mmol/L)	2.25 ± 0.27	0.000	2.41 ± 0.23	0.000	2.30 ± 0.17	0.002
Serum phosphorus (mmol/L)	1.58 ± 0.39	0.006	1.42 ± 0.40	0.008	1.46 ± 0.43	0.007
Serum sodium (mmol/L)	142.10 ± 3.15	0.011	143.70 ± 2.77	0.001	142.30 ± 2.83	0.209
CO2-CP (mmol/L)	25.37 ± 2.68	0.000	24.66 ± 2.50	0.002	25.52 ± 3.10	0.001
Nutritional indicators
Albumin (g/L)	38.12 ± 6.05	0.042	38.75 ± 3.97	0.003	37.88 ± 3.33	0.000
Pre-albumin (mg/L)	375.40 ± 95.85	0.001	361.80 ± 59.67	0.000	339.40 ± 105.90	0.056
Total protein (g/L)	67.96 ± 7.41	0.213	70.64 ± 7.27	0.065	68.50 ± 5.86	0.043
Others
FPG (mmol/L)	6.25 ± 1.87	0.111	7.34 ± 3.38	0.035	6.91 ± 2.25	0.009
Hemoglobin (g/L)	107.30 ± 15.62	0.000	112.10 ± 11.94	0.000	110.20 ± 18.98	0.000
GFR (mL/min/1.73 m2)#	4.08 ± 2.03	0.003	4.08 ± 1.70	0.005	5.26 ± 2.37	0.114
Urine volume (mL)	1190.00 ± 531.33	0.153	1308.00 ± 494.24	0.594	1376.00 ± 420.60	0.181

APD, automatic peritoneal dialysis; CAPD, continuous ambulatory peritoneal dialysis; CO2-CP, carbon dioxide combining power; FPG, fasting plasma glucose; GFR, glomerular filtration rate. t test for comparing the value before PD and after break-in period, P < 0.05

^#Residual kidney GFR was estimated by the formula: (renal urea clearance rate + renal creatinine clearance rate)/2