Table 3.

Cox regression models of the hazards of death according to CKD status and cognitive score (CS) group

	Model 1	Model 2	Model 3
Non-CKD and CS = ll	reference	reference	reference
Non-CKD and CS = 9–10	1.51 (1.23–1.85)	1.22 (1.00–1.48)	1.19 (0.98–1.45)
Non-CKD and CS = 6–8	2.06 (1.64–2.59)	1.31 (0.97–1.76)	1.21 (0.91–1.62)
Non-CKD and CS = 0–5	3.56 (2.67–4.73)	1.64 (1.23–2.20)	1.55 (1.14–2.10)
CKD and CS = ll	2.35 (1.82–3.04)	1.73 (1.36–2.20)	1.58 (1.23–2.03)
CKD and CS = 9–10	3.36 (2.56–4.41)	1.77 (1.24–2.52)	1.62 (1.13–2.31)
CKD and CS = 6–8	3.85 (2.78–5.32)	1.91 (1.37–2.66)	1.81 (1.31–2.51)
CKD and CS = 0–5	8.38 (6.19–11.34)	2.84 (1.70–4.75)	2.59 (1.52–4.41)

Model 1: Unadjusted.

Model 2: Adjusted for demographic factors, history of cardiovascular diseases, hypertension, diabetes, physical inactivity, history of smoking, alcohol use, and albuminuria; stratified by gender and history of stroke.

Model 3: Model 2 variables plus CRP, hemoglobin, and serum 25-hydroxyvitamin D; stratified by gender and history of stroke.