Table 3.

Two groups of patients with original diagnosis of IgAN after kidney transplant and graft failure were differentiated by agglomerative hierarchical clustering.

Statistical parameters
Statistic	From RB to dialysis (years)		From RB to Tx (years)		From Tx to graft failure (years)
	group 1	group 2	group 1	group 2	group 1	group 2
Nbr. of obs.	17	33	17	33	17	33
Median	5.9	0.4	7.1	2.2	11.2	6.1
Mean	6.8	1.1	6.8	2.3	10.0	5.5
SD	4.8	1.4	4.5	1.4	4.5	3.2
Mann-Whitney test	p < 0.0001		p = 0.001		p = 0.001

RB, renal biopsy; Tx, kidney transplant.