Table 2 Renal biopsy diagnoses by age
From: Kidney disease in the elderly: biopsy based data from 14 renal centers in Poland
Diagnosis | Elderly (aged ≥65) (n = 352) | Younger (aged 18–64) (n = 2214) | P |
|---|---|---|---|
MGN | 64 (18.2%) | 227 (10.3%) | <0.001 |
FSGS | 61 (17.3%) | 339 (15.3%) | 0.342 |
Amyloidosis  AL  AA  Non AA, non AL /not defined | 49 (13.9%) 10 (2.8%) 25 (7.1%) 14 (4%) | 82 (3.7%) 24 (1.1%) 39 (1.8%) 19 (0.8%) | <0.001 0.019 <0.001 <0.001 |
Pauci immune GN  crescentic GN  focal segmental GN | 45 (12.8%) 26 (7.4%) 19 (5.4%) | 150 (6.8%) 82 (3.7%) 68 (3%) | <0.001 0.004 0.037 |
IgAN | 33 (9.4%) | 604 (27.3%) | <0.001 |
Crescentic GN (types I,II,III) | 31 (8.8%) | 109 (4.9%) | 0.005 |
MCD | 22 (6.3%) | 132 (6%) | 0.809 |
DKD | 16 (4.6%) | 62 (2.9%) | 0.100 |
Unclassified lesions | 14 (4%) | 92 (4.2%) | 1.000 |
Tubulointerstitial nephritis | 9 (2.6%) | 34 (1.5%) | 0.177 |
Membrano-proliferative GN | 8 (2.3%) | 67 (3%) | 0.608 |
Arterionephrosclerosis (hypertensive nephropathy and aging nephropathy) | 6 (1.7%) | 18 (0.8%) | 0.128 |
MGA | 6 (1.7%) | 79 (3.6%) | 0.077 |
End-stage kidney | 6 (1.7%) | 39 (1.8%) | 1.000 |
LN | 5 (1.4%) | 191 (8.6%) | <0.001 |
LCDD/HCDD | 4 (1.1%) | 6 (0.3%) | 0.037 |
Acute tubular injury/necrosis | 4 (1.1%) | 8 (0.4%) | 0.070 |
Thrombotic microangiopathy | 3 (0.9%) | 39 (1.8%) | 0.263 |
Normal kidney morphology | 2 (0.6%) | 29 (1.3%) | 0.303 |
TBMD | 1 (0.3%) | 40 (1.8%) | 0.036 |