BMC Nephrology

Table 3 Clinical data, laboratory parameters, conventional ultrasound and time-intensity curve parameters of the lowest and highest creatinine tertiles of late group

From: Time-intensity curve analysis of contrast-enhanced ultrasound is unable to differentiate renal dysfunction in the early post-transplant period - a prospective study

	Lowest, Cr < 1.6		Highest, Cr > 2.5
Variable	Mean	SD	Mean	SD	p ^a
Age, y	49.31	11.90	45.55	13.59	0.642
Transplant duration, d	3202	2465	2200	3003	0.192
Dialysis duration, mos	58.83	75.44	50.64	38.56	0.622
Recipient creatinine, mg/dl	1.23	0.28	3.55	1.10	0.000
Kidney length, mm	119.32	6.48	118.48	15.62	0.870
Main artery RI	0.77	0.10	0.82	0.07	0.400
Intrarenal artery RI	0.68	0.07	0.70	0.07	0.484
PRA class I, %	2.17	5.31	1.00	3.00	0.690
PRA class II, %	16.17	39.60	4.78	14.33	0.690
Donor age, y	31.83	9.38	51.78	6.51	0.000
Donor Creatinine, mg/dl	1.15	0.87	2.05	1.65	0.306
CIT, min	1130	236.04	1272	102.51	0.325
TTP_Arteria	15.00	6.45	14.67	8.83	0.794
TTP_Cortex	15.45	5.99	16.15	8.72	0.977
TTP_Medulla	30.35	9.94	21.56	9.47	0.046
∆t¹ Peak_AC	0.45	2.05	1.47	2.48	0.486
∆t¹ Peak_AM	15.35	9.23	6.89	5.01	0.008
∆t¹ Peak_CM	14.89	8.61	5.42	3.36	0.001
RT_Arteria	10.07	5.75	8.71	3.83	0.794
RT_Cortex	10.44	5.81	10.75	5.73	1.000
RT_Medulla	18.85	7.50	12.81	4.34	0.046
∆t² Arrive_AC	1.05	0.84	1.66	0.79	0.173
∆t² Arrive_AM	2.78	1.20	3.13	1.51	0.685
∆t² Arrive_CM	1.73	1.08	1.46	0.98	0.601
∆t² Peak_AC	1.42	2.06	3.71	4.19	0.045
∆t² Peak_AM	11.57	8.46	7.23	3.76	0.271
∆t² Peak_CM	10.15	8.32	3.52	5.35	0.072

^aMann-Whitney test; SD standard deviation, RI resistive index, PRA panel reactive antibody, CIT cold ischemia time, TTP time to peak, ∆t¹ (temporal difference) calculated based on TTP, AC arteria_cortex, AM arteria_medulla, CM cortex_medulla, RT rising time, ∆t² (temporal difference) calculated based on RT

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