Primary renal diagnosis in study participants
| Diagnosis | n |
| Renal dysplasia/hypoplasia | 10 |
| Congenital nephrotic syndrome | 5 |
| Nephronophthiasis | 3 |
| Posterior urethral valves | 3 |
| Prune belly syndrome | 2 |
| Other urological abnormalities | 2 |
| Bardet Biedel syndrome | 1 |
| Focal segmental glomerulosclerosis | 1 |
| Unspecified glomerulonephritis | 1 |
| Haemolytic uraemic syndrome | 1 |
| Interstitial nephritis | 1 |
| Reflux nephropathy | 1 |
| Towns Buck syndrome | 1 |