Table 1.

Characteristics of all patients with ESRD secondary to granulomatosis with polyangiitis and microscopic polyangiitis or other causes in Australia and New Zealand during 1996–2010

CharacteristicGranulomatosis with Polyangiitis (n=221)Microscopic Polyangiitis (n=228)Other ESRD (n=36,435)P Value
Age (yr)60.7±16.461.8±15.458.0±16.7<0.001
Age category (yr)0.05
 0–90 (0)1 (0)312 (1)
 10–195 (2)4 (2)584 (2)
 20–299 (4)7 (3)1570 (4)
 30–3912 (5)9 (4)2800 (8)
 40–4924 (11)22 (10)4921 (14)
 50–5939 (18)38 (17)7239 (20)
 60–6954 (24)64 (28)8565 (24)
 70–7963 (29)69 (30)8212 (23)
 ≥8015 (7)14 (6)2232 (6.1)
Male153 (61.1)153 (67.1)21,677 (59.5)0.06
Racial origin<0.001
 European209 (95)214 (94)26,746 (73)
 ATSI0 (0)2 (1)2736 (8)
 MPI4 (2)3 (1)3784 (10)
 Asian6 (3)4 (2)1824 (5)
 Other2 (1)5 (2)1345 (4)
RRT era0.23
 1996–200060 (27)71 (31)9730 (27)
 2001–200585 (39)75 (33)12,241 (34)
 2006–201076 (34)82 (36)14,464 (40)
Ever smoked0.13
Current19 (9)34 (15)4747 (13)
 Former88 (40)104 (46)14,409 (40)
 Never114 (52)90 (40)17,271 (47)
 Missing0 (0)0 (0)8 (0)
Hypertension<0.001
 Yes104 (47)112 (49)17,670 (48)
 No31 (14)27 (12)2720 (8)
 Missing86 (39)89 (39)16,045 (44)
Diabetes mellitus<0.001
 Yes34 (15)33 (14)14,771 (41)
 No187 (85)195 (86)21,664 (59)
Chronic lung disease<0.001
 Yes59 (27)54 (24)5746 (16)
 No162 (73)174 (76)30,689 (84)
Coronary artery disease<0.001
 Yes61 (28)64 (28)14,242 (39)
 No160 (72)164 (72)22,192 (61)
 Missing0 (0)0 (0)1 (0)
Peripheral vascular disease<0.001
 Yes39 (18)29 (13)9336 (26)
 No182 (82)199 (87)27,098 (74)
 Missing0 (0)0 (0)1 (0)
Cerebrovascular disease0.03
 Yes18 (8)24 (10)5402 (15)
 No203 (92)204 (90)31,032 (85)
 Missing0 (0)0 (0)1 (0)
BMI (kg/m2)25.8±5.325.5±5.227.1±6.4<0.001
First RRT<0.001
 Hemodialysis186 (84)181 (79)25,626 (70)
 Peritoneal dialysis33 (15)43 (19)9627 (26)
 Renal transplant2 (1)4 (2)1182 (3)
Renal biopsy<0.001
 Yes210 (95)219 (96)11,198 (31)
 No10 (5)8 (4)24,397 (67)
 Missing1 (0)1 (0)840 (2)
Follow-up (years)3.0 (1.0–5.8)3.3 (1.3–5.7)3.1 (1.3–5.9)0.08
  • Data are presented as mean ± SD, n (%), or median (range). ATSI, Aboriginal and Torres Strait Islander; MPI, Maori and Pacific Islander; RRT, renal replacement therapy; BMI, body mass index.