Table 1.
Patient characteristics at the beginning of dialysis
| Characteristics (whole cohort), n = 5115 | Number (%) |
|---|---|
| Sex | |
| Male | 3119 (61) |
| Female | 1996 (39) |
| Age (years) | |
| <80 | 3125 (61) |
| ≥80 | 1990 (39) |
| First modality of dialysis | |
| Hemodialysis | 4467 (87) |
| Peritoneal dialysis | 648 (13) |
| Primary nephropathy | |
| Hypertensive and large vessel disease | 1760 (34) |
| Diabetes | 1204 (23) |
| Primary and secondary glomerulonephritis | 360 (7) |
| Interstitial nephritis/pyelonephritis | 368 (7) |
| Renal neoplasms/myeloma/light chain nephropathy/amyloidosis | 241 (5) |
| Miscellaneous conditions/unknown/missinga | 1182 (23) |
Notes:
a
Unknown, missing (n = 824); miscellaneous primary nephropathies (n = 328), including genetic diseases, mainly represented by polycystic kidney diseases (n = 143); and few cases of developmental anomalies (renal dysplasia, hypoplasia), cystic diseases (infantile polycystic kidneys, nephronophthisis), tubular necrosis (no recovery), Alport syndrome, tuberous sclerosis, cystinosis, primary oxalosis, and Fabry’s disease.