Table 5. Cox proportional hazard model for risk of disease endpoints according to CKD stages (n = 352).

CKD progression	Unadjusted	Model 1	Model 2
G2	5.18 (0.47–57.13)	4.67 (0.41–53.64)	16.38 (0.62–435.49)
G3a	ref	ref	ref
G3b	1.33 (0.12–14.73)	1.49 (0.13–17.24)	3.81 (0.19–75.40)
G4–G5	4.63 (0.54–39.63)	5.94 (0.63–56.01)	8.21 (0.61–110.28)
Cardiovascular events	Unadjusted	Model 1	Model 2
G2	0	0	0
G3a	ref	ref	ref
G3b	1.22 (0.45–3.29)	0.67 (0.24–1.91)	0.67 (0.23–1.95)
G4–G5	1.69 (0.63–4.58)	0.70 (0.23–2.14)	0.88 (0.26–2.94)
All-cause death	Unadjusted	Model 1	Model 2
G2	2.55 (0.16–40.73)	4.81 (0.29–78.90)	5.93 (0.33–105.69)
G3a	ref	ref	ref
G3b	1.35 (0.12–14.91)	0.92 (0.08–10.51)	0.94 (0.08–11.36)
G4–G5	12.86 (1.69–97.84)	7.42 (0.87–63.50)	4.47(0.47–42.21)

Data are presented as hazard ratios (95% confidence intervals).

Model 1: Adjusted by age, gender, hypertension, diabetes, and history of CVD. Model 2, Adjusted by Model 1, hemoglobin, serum albumin, and the use of RAAS inhibitor. Abbreviations: CKD, chronic kidney disease.