Table 4.

Incidence of renal diseases in Aachen, Germany for a period of 24 years, divided into three 8-year time frames

GN subtype	1990–97		1998–2005		2006–13		All years		Trend of incidence
	n (%)	Incidence php/year	n (%)	Incidence php/year	n (%)	Incidence php/year	n (%)	Incidence php/year	P-value
IgAN	41 (11)	0.6	83 (23)	1.2	121 (25)	1.9	245 (20)	1.2	<0.0001
RPGN	50 (14)	0.8	41 (11)	0.6	41 (9)	0.6	132 (11)	0.7	0.353
NSc	39 (11)	0.6	34 (9)	0.5	51 (11)	0.8	124 (10)	0.6	0.174
MGN	25 (7)	0.4	46 (13)	0.7	34 (7)	0.5	105 (9)	0.5	0.266
FSGS	8 (2)	0.1	27 (7)	0.4	39 (8)	0.6	74 (6)	0.4	<0.0001
MCD	33 (9)	0.5	20 (5)	0.3	21 (4)	0.3	74 (6)	0.4	0.091
LN	13 (4)	0.2	20 (5)	0.3	25 (5)	0.4	58 (5)	0.3	0.0499
aTIN	25 (7)	0.4	11 (3)	0.2	7 (1)	0.1	43 (4)	0.2	0.0008
Others	124 (35)	1.9	86 (23)	1.3	143 (30)	2.2	353 (29)	1.8	0.1935
Total	358 (100)	5.5	368 (100)	5.5	482 (100)	7.4	1208 (100)	6.1	<0.0001

NSc, nephrosclerosis; LN, lupus nephritis; aTIN, acute tubulointerstitial nephritis.