Acceptable rates based on urine analyzers of different companies
| Instrument | No. (%) | pH | Protein | Glucose | Ketone | Bilirubin | Blood | Urobilinogen | Nitrite | Leukocyte |
|---|---|---|---|---|---|---|---|---|---|---|
| 1st proficiency test | ||||||||||
| YD | 626 (39.4) | 95.5 | 97.5 | 95.9 | 99.5 | 99.4 | 99.3 | 43.3 | 99.6 | 98.7 |
| Abbott | 380 (23.9) | 98.3 | 76.5 | 97.3 | 99.7 | 99.0 | 99.4 | 70.9 | 99.8 | 99.7 |
| Roche | 182 (11.5) | 85.6 | 98.0 | 99.5 | 99.8 | 99.9 | 99.1 | 71.7 | 99.2 | 99.4 |
| DFI | 144 (9.1) | 97.0 | 83.3 | 99.0 | 99.8 | 99.1 | 98.8 | 69.8 | 98.8 | 97.9 |
| Sysmex | 109 (6.9) | 91.3 | 98.2 | 100.0 | 100.0 | 100.0 | 99.8 | 56.9 | 99.8 | 99.6 |
| Siemens | 108 (6.8) | 80.1 | 97.7 | 94.9 | 100.0 | 86.3 | 98.4 | 47.9 | 99.1 | 99.6 |
| Eiken | 14 (0.9) | 82.5 | 91.3 | 98.8 | 100.0 | 86.1 | 98.8 | 72.2 | 100.0 | 100.0 |
| Arkray | 16 (1.0) | 100.0 | 95.3 | 100.0 | 100.0 | 75.0 | 95.3 | 21.9 | 100.0 | 100.0 |
| Beckman | 9 (0.6) | 97.2 | 88.9 | 100.0 | 97.2 | 80.6 | 94.5 | 47.2 | 97.2 | 100.0 |
| 2nd proficiency test | ||||||||||
| YD | 622 (39.0) | 94.7 | 99.5 | 96.0 | 99.8 | 99.5 | 99.3 | 50.1 | 99.8 | 98.6 |
| Abbott | 397 (24.9) | 97.9 | 78.5 | 97.5 | 99.6 | 99.5 | 99.5 | 93.7 | 99.8 | 99.1 |
| Roche | 178 (11.2) | 86.1 | 100.0 | 99.7 | 100.0 | 99.9 | 99.2 | 96.8 | 99.6 | 99.3 |
| DFI | 142 (8.9) | 96.5 | 83.9 | 98.5 | 99.7 | 99.1 | 98.1 | 89.8 | 98.5 | 98.1 |
| Sysmex | 112 (7.0) | 86.4 | 99.8 | 100.0 | 100.0 | 100.0 | 100.0 | 76.8 | 100.0 | 100.0 |
| Siemens | 107 (6.7) | 85.8 | 99.6 | 92.8 | 99.8 | 84.8 | 98.6 | 62.2 | 99.1 | 99.3 |
| Eiken | 15 (0.9) | 92.1 | 98.7 | 98.7 | 100.0 | 91.2 | 100.0 | 95.6 | 98.5 | 100.0 |
| Arkray | 15 (0.9) | 100.0 | 100.0 | 100.0 | 100.0 | 76.7 | 98.3 | 45.0 | 100.0 | 100.0 |
| Beckman | 8 (0.5) | 100.0 | 96.9 | 100.0 | 100.0 | 71.9 | 100.0 | 84.4 | 100.0 | 100.0 |
| 3rd proficiency test | ||||||||||
| YD | 628 (39.1) | 97.4 | 99.6 | 97.1 | 99.7 | 99.1 | 98.9 | 50.0 | 99.6 | 98.8 |
| Abbott | 400 (24.9) | 97.3 | 93.4 | 97.7 | 99.7 | 99.6 | 99.5 | 94.3 | 99.8 | 99.7 |
| Roche | 177 (11.0) | 84.1 | 99.9 | 99.7 | 100.0 | 100.0 | 99.7 | 88.6 | 99.6 | 100.0 |
| DFI | 143 (8.9) | 95.1 | 88.1 | 99.6 | 100.0 | 98.8 | 98.9 | 90.1 | 99.1 | 99.2 |
| Sysmex | 115 (7.2) | 99.8 | 100.0 | 100.0 | 100.0 | 99.8 | 99.8 | 76.3 | 100.0 | 100.0 |
| Siemens | 103 (6.4) | 83.0 | 100.0 | 99.5 | 100.0 | 84.2 | 99.8 | 64.3 | 99.8 | 99.8 |
| Eiken | 16 (1.0) | 96.1 | 100.0 | 100.0 | 100.0 | 100.0 | 97.4 | 95.4 | 100.0 | 100.0 |
| Arkray | 17 (1.1) | 98.5 | 100.0 | 100.0 | 100.0 | 75.0 | 98.5 | 30.9 | 100.0 | 100.0 |
| Beckman | 8 (0.5) | 100.0 | 100.0 | 100.0 | 100.0 | 56.3 | 100.0 | 71.9 | 100.0 | 100.0 |
Values are presented as percentages or numbers (%). The results with <90% accuracy are indicated in bold. The instruments used were as follows: YD (YD Diagnostics, Yongin, Korea), Abbott (Abbott Laboratories, Abbott Park, IL, USA), Roche (Roche Diagnostics, Mannheim, Germany), DFI (DFI Co. Ltd., Gimhae, Korea), Symex (Symex Co., Kobe, Japan), Siemens (Siemens Healthcare, Erlangen, Germany), Eiken (Eiken Chemical Co., Tokyo, Japan), Arkray (Arkray Inc., Kyoto, Japan), and Beckman (Beckman Coulter Inc., Brea, CA, USA).