| Before proforma introduced | Patients not treated who should have been | Patients treated appropriately |
| Gender male : female | 10 : 12 | 64 : 29 |
| % Diabetic | 36 | 12.9 |
| Age, years (median and range) | 70.2 (52–87) | 59.5 (34–83) |
| Weight, kg (median and range) | 72.2 (49–118) | 81.7 (45–120) |
| Serum creatinine, mmol (median and range) | 119 (59–516) | 92.8 (52–550) |
| GFR (median and range) | 61.6 (14–120) | 92.1 (11–218) |
GFR, glomerular filtration rate.