Table 1.

Study population characteristics.

Kidney transplant recipients	No rejection (n = 51)	Rejection (n = 49)	P
Age recipient (yrs)	55 (19–79)	63 (28–77)	<0.01
Age donor (yrs)	55 (26–77)	63 (35–76)	<0.01
Male gender recipient, % (n)	60.8 (31)	59.2 (29)	0.89
Male gender donor, % (n)	49 (25)	44.9 (22)	0.67
CMV-seropositivity recipient, % (n)	51 (26)	59.2 (29)	0.32
CMV-seropositivity donor, % (n)	51 (26)	57.1 (28)	0.48
CMV-serostatus donor/recipient			0.22
−/−	27.4 (14)	16.3 (8)
+/−	21.6 (11)	20.5 (10)
−/+	21.6 (11)	26.5 (13)
+/+	29.4 (15)	36.7 (18)
Mismatch HLA class I	2 (1-4)	3 (0–4)	0.76
Mismatch HLA class II	1 (0–2)	1 (1–2)	0.51
Mismatch HLA class I and II	4 (2–6)	5 (1–6)	0.97
PRA current (%)	0 (0–79)	0 (0–97)	0.65
PRA historic (%)	4 (0–100)	4 (0–97)	0.79
ABO incompatible, % (n)	0 (0)	4.1 (2)	0.04
Re-transplantation, % (n)	5.9 (3)	8.2 (4)	0.58
Underlying kidney disease			0.50
Nephrosclerosis/atherosclerosis/hypertension	21.6 (11)	24.5 (12)
Primary glomerulopathies	23.5 (12)	30.6 (15)
Diabetes	19.6 (8)	18.4 (9)
Urinary tract infections/stones	0 (0)	2 (1)
Reflux nephropathy	7.8 (4)	0 (0)
Polycystic kidney disease	9.8 (5)	8.2 (4)
Other	17.6 (9)	14.3 (7)
Unknown	3.9 (2)	2 (1)
Pre-emptive kidney transplantation, % (n)	35.3 (18)	34.7 (17)	1.00
Type of transplantation			<0.01
Living-unrelated	37.3 (19)	46.9 (23)
Living-related	41.1 (21)	14.3 (7)
Deceased	21.6 (11)	38.8 (19)
Time to biopsy-proven rejection (days post-transplant)		8 (2–341)
TCMR I		26 (5–341)
TCMR II		8 (2–259)
Acute T-cell-mediated rejection type*, % (n)
TCMR I		35 (17)
TCMR II		65 (32)

^*Biopsy-proven T-cell mediated rejection within first year after transplantation.

Values are median (min–max) or proportion and number, respectively.