Table 2. Factors potentially associated with patient distribution into the four groups.

Patient groups	Age, median yrs (range)	Transplanted organ (% patients)		Induction therapy (% patients)		Immunosuppressive regimen containing (% patients):		Acute rejection (%)
		Heart (n = 14)	Kidney (n = 25)	ATGa (n = 26)	Anti-CD25 (n = 13)	MMFb (n = 27)	RADc/RAD+MMF low dosage (n = 10)
1 (n = 7)	50 (43–60)	14	86	57	43	43	57	14
2 (n = 14)	57 (46–71)	14	86	43	57	77	23	7
3 (n = 9)	58 (24–69)	56	44	89	11	75	25	22
4 (n = 9)	54 (42–68)	67	33	89	11	89	11	22
P value	nsd	0.02		0.04		ns		ns

^aATG, anti-thymocyte globulin.

^bMMF, mophetil mycophenolate.

^cRAD, rapamycin derivative.

^dns, not significant.