Impact of superimposed nephrological care to guidelines-directed management by primary care physicians of patients with stable chronic kidney disease: a randomized controlled trial

Table 3 Baseline characteristics of screened CKD patients

Characteristics	Overall (N = 528)	Included (N = 242)	Excluded (N = 286)		p
			Previously followed (N = 147)	Declined participation (N = 139)
Mean age (years)	70 +/− 9	70 +/− 8	66 +/− 12	74 +/− 5^a	0.001
Male gender	323 (62%)	169 (70%)^a	82 (57%)	72 (52%)	0.003
Diabetes/vascular nephropathy	415 (79%)	203 (85%)	86 (59%)^a	136 (90%)	0.001
Charlson score	4.9 (1.9)	4.9 (2.4)	5.2 (1.5)	4.8 (1.5)	0.06
eGFR (ml/min/1.73m²)	32 (9.3)	34 (8)	26 (10)^a	37 (7)	0.001

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