Table 3.

Predictors of PSTR

Variable	Incident		Prevalent
	Coefficient (95% CI)	P Value	Coefficient (95% CI)	P Value
Age (per decade)	0.001 (−0.005 to 0.008)	0.7	−0.004 (−0.012 to 0.004)	0.4
Body mass index	−0.002a (−0.005 to −0.0001)	0.04	−0.0009 (−0.004 to 0.002)	0.5
APD use	−0.02 (−0.06 to 0.02)	0.3	−0.008 (−0.04 to 0.03)	0.7
Systolic BP (per 10 mmHg)	0.005a (0.0002 to 0.009)	0.04	0.001 (−0.004 to 0.007)	0.6
Male sex	0.02a (0.003 to 0.04)	0.02	0.02a (0.002 to 0.05)	0.04
Duration of PD	0.08×monthb (0.03 to 0.13)	<0.001	0.01×yearb (0.004 to 0.02)	0.003
	0.02×montha (0.04 to 0.003)
Biocompatible solution use	−0.005 (−0.02 to 0.02)	0.7	−0.04a (−0.07 to (−0.004)	0.03
Icodextrin use	0.06b (0.03 to 0.09)	<0.001	0.04a (0.01 to 0.07)	0.01
Average glucose concentration (per g/L)	0.005b (0.002 to 0.007)	<0.001	0.005b (0.001 to 0.008)	0.004
Dialysate IL-6	0.08b (0.06 to 0.11)	<0.001	0.09b (0.07 to 0.12)	<0.001
Dialysate TNF-α	0.04 (−0.03 to 0.10)	0.3	−0.03 (−0.1 to 0.06)	0.6
Dialysate IFN-γ	−0.009 (−0.04 to 0.02)	0.6	0.008 (−0.03 to 0.04)	0.6
Plasma IL-6	−0.02 (−0.06 to 0.01)	0.2	0.006 (−0.04 to 0.05)	0.8
Plasma TNF-α	0.02 (−0.04 to 0.09)	0.5	−0.05 (−0.12 to 0.02)	0.2
Plasma IFN-γ	−0.009 (−0.04 to 0.02)	0.6	−0.02 (−0.06 to 0.03)	0.4
Plasma IL-1β	0.02 (−0.06 to 0.11)	0.6	0.001 (−0.09 to 0.09)	0.98
Diabetic	0.02a (0.001 to 0.05)	0.04	0.004 (−0.03 to 0.03)	0.8
Comorbidity	0.0005 (−0.01 to 0.01)	0.9	0.003 (−0.01 to 0.02)	0.7
Urine volume (per L)	0.0b (0.01 to 0.04)	<0.001	0.02a (0.005 to 0.04)	0.01
Korean	0.08a (0.01 to 0.15)	0.02	0.05 (−0.005 to 0.11)	0.07

Data are presented so that coefficients represent the change in dialysate-to-plasma creatinine ratio. A total of 499 and 307 patients were in the final models for incident and prevalent patients, respectively. Cytokine coefficients are per log₁₀ changes in concentration. CI, confidence interval.

^aP=0.01–0.05.

^bP<0.01.