Table 3.

Multivariable Cox survival analysis for the ESRD-CI and CCI

Model	ESRD-CI Group	Events (N)	HR [95 % CI]	Model	CCI Group	Events (N)	HR [95 % CI]
Unadjusted	≤1 2	311	(ref) 1.74 [1.22 to 2.50]	Unadjusted	1 2	311	--- (ref)
	3		1.39 [0.94 to 2.07]		3		1.84 [1.17 to 2.90]
	4		2.32 [1.62 to 3.32]		4		1.83 [1.23 to 2.72]
	5		2.37 [1.60 to 3.52]		5		2.31 [1.54 to 3.47]
	≥6		2.64 [1.91 to 3.65]		≥6		2.91 [2.04 to 4.15]
Model 1a	≤1 2	311	(ref) 1.60 [1.12 to 2.30]	Model 1a	1 2	311	--- (ref)
	3		1.19 [0.80 to 1.76]		3		1.64 [1.04 to 2.59]
	4		2.00 [1.40 to 2.86]		4		1.66 [1.12 to 2.47]
	5		1.97 [1.32 to 2.93]		5		2.12 [1.41 to 3.18]
	≥6		2.12 [1.52 to 2.93]		≥6		2.44 [1.71 to 3.49]
Model 2b	≤1 2	311	(ref) 1.62 [1.13 to 2.33]	Model 2b	1 2	311	--- (ref)
	3		1.21 [0.81 to 1.80]		3		1.66 [1.05 to 2.63]
	4		2.02 [1.41 to 2.90]		4		1.69 [1.14 to 2.52]
	5		1.99 [1.33 to 2.96]		5		2.13 [1.42 to 3.21]
	≥6		2.11 [1.52 to 2.93]		≥6		2.47 [1.73 to 3.53]
Model 3c	≤1 2	311	(ref) 1.60 [1.11 to 2.30]	Model 3c	1 2	311	--- (ref)
	3		1.21 [0.80 to 1.81]		3		1.64 [1.03 to 2.59]
	4		2.02 [1.40 to 2.93]		4		1.86 [1.23 to 2.81]
	5		1.91 [1.27 to 2.90]		5		2.29 [1.48 to 3.54]
	≥6		2.09 [1.49 to 2.93]		≥6		2.75 [1.86 to 4.08]
Model 4d	≤1 2	311	(ref) 1.57 [1.09 to 2.27]	Model 4d	1 2	311	--- (ref)
	3		1.20 [0.80 to 1.80]		3		1.63 [1.03 to 2.59]
	4		1.97 [1.36 to 2.87]		4		1.83 [1.21 to 2.77]
	5		1.86 [1.23 to 2.81]		5		2.24 [1.44 to 3.47]
	≥6		2.06 [1.46 to 2.89]		6		2.70 [1.81 to 4.02]
Model 5e	≤1 2	309	(ref) 1.63 [1.12 to 2.36]	Model 5e	1 2	309	--- (ref)
	3		1.28 [0.84 to 1.91]		3		1.76 [1.10 to 2.82]
	4		1.95 [1.34 to 2.85]		4		1.86 [1.22 to 2.83]
	5		1.89 [1.25 to 2.86]		5		2.38 [1.53 to 3.72]
	≥6		1.99 [1.41 to 2.81]		≥6		2.71 [1.81 to 4.06]

^a: Adjusted for age

^b: Adjusted for factors in a., race and gender

^c: Adjusted for factors in b. and cause of ESRD

^d: Adjusted for factors in c. and dialysis type

^e: Adjusted for factors in d. and laboratory data (MDRD GFR, albumin, phosphate, hemoglobin)