Table 2.
Instrument Summary Data. End of Cycle Report for Urine albumin. RCPA QAP Basic Urine Chemistry Programme, Cycle 52 July – November 2010. Statistics are derived from 12 samples (duplicates at six concentrations ranging from Low to High) for each instrument group. SD and CV indicate the median imprecision for the 12 results, and results for Low and High indicate the median bias against the targets given. See the RCPA Chemical Pathology QAP website18 for more detailed explanation of the statistical processes.
| Instrument | No. Labs | SD | CV (%) | Low 8.1 | High 132.0 |
|---|---|---|---|---|---|
| Beckman Coulter LX20/LX40 | 1 | 1.24 | 1.8 | 8.4 | 130.7 |
| Roche Diagnostics Hitachi Cobas c501/c502 | 22 | 1.85 | 2.7 | 9.7 | 129.2 |
| Siemens Healthcare Diagnostics | 1 | 2.20 | 2.8 | 8.1 | 151.6 |
| Roche Diagnostics Hitachi Modular | 15 | 2.30 | 3.2 | 10.5 | 132.5 |
| INTEGRA 400/400+ | 7 | 2.23 | 3.2 | 7.7 | 132.0 |
| ADVIA 1650/1800 | 5 | 2.49 | 3.4 | 5.7 | 148.9 |
| Roche Diagnostics Hitachi 912 | 1 | 2.46 | 3.5 | 7.0 | 132.4 |
| Abbott ARCHITECT c8000 | 11 | 2.63 | 3.5 | 7.5 | 143.3 |
| Beckman Coulter AU2700/AU5421/AU5432 | 7 | 2.25 | 3.6 | 7.6 | 117.9 |
| BN ProSpec | 1 | 2.87 | 3.7 | 8.9 | 144.6 |
| Beckman Coulter UniCel DxC 600/601i | 13 | 2.75 | 3.7 | 8.2 | 140.5 |
| Beckman coulter AU400 | 1 | 2.31 | 3.8 | 5.7 | 117.1 |
| ADVIA 2400 | 13 | 2.97 | 4.0 | 6.1 | 140.8 |
| Beckman Coulter AU600/640 | 9 | 2.63 | 4.1 | 7.7 | 118.6 |
| Abbott ARCHITECT c4000/c16000 | 5 | 3.13 | 4.2 | 8.4 | 138.6 |
| Roche Diagnostics Hitachi 917 | 2 | 2.97 | 4.2 | 10.1 | 129.9 |
| Beckman Coulter Immage/Immage 800 | 10 | 2.75 | 4.4 | 6.8 | 121.8 |
| Roche Diagnostics Hitachi Cobas c701/c702 | 1 | 3.6 | 5.1 | 11.0 | 133.4 |
| Beckman Coulter UniCel DxC 800 | 7 | 4.05 | 5.7 | 8.6 | 138.0 |
| INTEGRA 700/800 | 23 | 4.08 | 5.9 | 5.8 | 132.3 |
| DCA Vantage | 2 | 4.38 | 6.2 | 4.9 | 133.9 |
| Siemens Healthcare Diagnostics DCA 2000 | 2 | 4.32 | 6.4 | 6.0 | 128.6 |
| VITROS 5,1 F S/5600 (c) | 6 | 6.11 | 8.3 | 8.1 | 134.8 |
| Immulite 2000/2000 XPi | 1 | 6.22 | 8.8 | 8.8 | 131.9 |
| Immulite/Immulite 1000 | 2 | 8.69 | 11.4 | 5.1 | 147.1 |
| Dimension Vista | 2 | 9.62 | 11.4 | 11.9 | 157.5 |
| Dimension XL/RXL/RXL MAX | 14 | 7.95 | 13.9 | 6.1 | 112.6 |