Table. 2.

Acceptable rates based on urine analyzers of different companies

Instrument No. (%) pH Protein Glucose Ketone Bilirubin Blood Urobilinogen Nitrite Leukocyte
1st proficiency test
YD 594 (38.9) 96.1 98.8 98.9 99.3 98.7 95.4 99.7 99.3 99.1
SD 355 (23.2) 94.0 97.8 99.0 99.1 99.6 99.0 99.4 99.1 98.7
Roche 218 (14.3) 91.9 96.8 100.0 99.1 98.3 98.2 98.6 99.4 99.7
DFI 139 (9.1) 83.9 89.1 98.1 98.9 97.1 98.3 99.0 99.5 98.9
Siemens 92 (6.0) 74.2 100.0 99.5 99.7 92.1 99.7 99.5 99.7 99.5
Sysmex 59 (3.9) 100.0 100.0 100.0 75.4 100.0 75.4 100.0 100.0 100.0
Eiken 37 (2.4) 91.9 98.8 100.0 76.4 89.9 75.6 100.0 100.0 100.0
Arkray 23 (1.5) 95.7 97.9 98.9 98.9 96.8 100.0 98.9 100.0 100.0
Beckman 10 (0.7) 100.0 100.0 100.0 100.0 75.0 95.0 97.5 100.0 75.0
2nd proficiency test
YD 636 (39.8) 96.8 99.5 99.5 94.8 98.0 96.8 99.5 99.3 99.0
SD 370 (23.2) 94.0 98.3 99.0 95.8 98.8 97.8 98.8 99.0 98.5
Roche 216 (13.5) 75.3 100.0 100.0 91.3 100.0 99.3 98.8 99.8 99.8
DFI 145 (9.1) 84.5 91.0 98.8 98.3 97.8 98.8 99.8 99.3 99.3
Siemens 96 (6.0) 77.5 99.8 99.8 94.5 91.5 100.0 99.3 99.8 99.0
Sysmex 65 (4.1) 99.5 100.0 100.0 99.0 100.0 75.5 100.0 100.0 100.0
Eiken 38 (2.4) 92.5 99.3 100.0 99.3 90.8 78.3 100.0 100.0 100.0
Arkray 22 (1.4) 97.8 100.0 98.8 76.1 100.0 100.0 99.0 99.0 99.0
Beckman 10 (0.6) 100.0 100.0 77.5 100.0 77.5 100.0 97.5 100.0 75.0
3rd proficiency test
YD 615 (39.5) 96.0 99.3 97.5 98.8 99.5 99.0 99.5 100.0 99.3
SD 369 (23.7) 98.0 98.3 97.0 99.0 99.5 98.0 99.0 100.0 99.5
Roche 201 (12.9) 94.0 100.0 99.5 99.8 99.8 99.0 96.3 99.5 100.0
DFI 139 (8.9) 96.3 91.3 99.8 99.0 98.8 99.0 99.0 100.0 98.5
Siemens 100 (6.4) 78.8 100.0 100.0 97.5 95.3 100.0 95.0 100.0 100.0
Sysmex 77 (5.0) 100.0 100.0 100.0 80.3 100.0 100.0 83.8 99.8 100.0
Eiken 25 (1.6) 92.5 99.3 99.3 97.5 89.0 100.0 97.5 100.0 100.0
Arkray 19 (1.2) 100.0 100.0 100.0 100.0 100.0 80.3 77.8 100.0 98.8
Beckman 10 (0.6) 100.0 100.0 100.0 95.0 72.5 97.5 77.5 100.0 100.0

Values are presented as number (%). The results <90% of accuracy were indicated in the bold type. The instruments used were from the following companies: YD (YD Diagnostics, Yongin, Korea), SD (Standard Diagnostics, Seoul, Korea), Roche (Roche Diagnostics, Mannheim, Germany), DFI (DFI Co. Ltd., Gimhae, Korea), Siemens (Siemens Healthcare, Erlangen, Germany), Eiken (Eiken Chemical Co., Tokyo, Japan), Symex (Symex Co., Kobe, Japan), Arkray (Arkray Inc., Kyoto, Japan), and Beckman (Beckman Coulter Inc., Brea, CA, USA).

J Lab Med Qual Assur 2020;42:157~165 https://doi.org/10.15263/jlmqa.2020.42.4.157
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