TABLE 3.

Characteristics of graft-injuring events with normal dd-cfDNA and normal creatinine vs abnormal creatinine

	Normal creatinine (n = 30)	Abnormal creatinine (n = 21)	P
Serum creatinine (mg/dL)	1.41	2.58	<0.001
Allosure (%)	0.26	0.27	0.88
Mean time from transplant to event (y)	0.81	0.81	0.99
Tacrolimus level (ng/mL)	6.88	6.62	0.70
Maintenance immunosuppression (n=)			0.31
Tacro + MPA + steroid	13	9
Tacro + MPA	13	7
Tacro + steroid	2	4
Sirolimus + leflunomide	2	0
Sirolimus + leflunomide + steroid	0	1

Values expressed as mean when applicable. Student t-test for continuous variables; χ² test for binary or categorical variables (global P value).

dd-cfDNA, donor-derived cell-free DNA; MPA, mycophenolic acid; Tacro, tacrolimus.