| After proforma introduced | Patients not treated who should have been | Patients treated appropriately |
| Gender male : female | 5 : 9 | 46 : 18 |
| % Diabetic | 36 | 17 |
| Age, years (median and range) | 71 (49–82) | 63.2 (24–87) |
| Weight, kg (median and range) | 76 (52–104.9) | 78.8 (52–123) |
| Serum creatinine, mmol (median and range) | 104 (67–228) | 108.9 (56–536) |
| GFR (median and range) | 60.8 (30–96.8) | 75.8 (12–136) |
GFR, glomerular filtration rate.