Table 3.

Results of the unadjusted (univariate) and multivariable cause-specific time-dependent Cox models stratified on center studying the risk of graft failure or death.

	Unadjusted Cox models			Adjusted Cox model
	HR	95% CI	p-value	HR	95% CI	p-value
AGPN			<0.0001			<0.0001
One early (vs. None)	1.67	[1.40; 2.00]		1.37	[1.08; 1.74]
Two at least the first occurs early (vs. None)	2.28	[1.74; 2.99]		2.14	[1.51; 3.02]
Three or more at least the first occurs early (vs. None)	2.66	[2.02; 3.50]		3.35	[2.33; 4.80]
One late AGPN and no early (vs. None)	2.11	[1.74; 2.55]		2.16	[1.72; 2.73]
Two late AGPN and no early (vs. None)	1.81	[1.28; 2.57]		1.91	[1.25; 2.90]
Three or more late AGPN and no early (vs. None)	2.89	[2.08; 4.02]		2.78	[1.78; 4.36]

AGPN, acute graft pyelonephritis; CI, confidence interval; HR, hazard ratio.