Table. 2.

Acceptable rates based on urine analyzers of different manufacturers

Instrument No. (%) pH Protein Glucose Ketone Bilirubin Blood Urobilinogen Nitrite Leukocyte
1st proficiency test
YD 630 (41.3) 94.5 99.5 97.1 98.4 99.6 99.2 99.4 99.6 95.9
SD 396 (25.9) 97.2 98.5 97.2 98.4 99.3 99.5 99.3 99.6 99.5
Roche 195 (12.8) 90.9 100.0 99.5 99.9 100.0 99.8 96.8 99.8 99.4
DFI 137 (9.0) 95.1 90.3 99.5 99.3 99.1 99.1 99.3 99.5 99.3
Siemens 102 (6.7) 87.3 100.0 100.0 93.9 94.4 99.8 94.1 99.5 99.7
Sysmex 85 (5.6) 99.7 100.0 100.0 79.4 100.0 100.0 95.0 99.7 99.7
Eiken 31 (2.0) 85.5 100.0 99.2 98.2 86.6 100.0 99.1 100.0 100.0
Arkray 18 (1.2) 100.0 100.0 100.0 100.0 100.0 100.0 75.0 99.8 100.0
Beckman 9 (0.6) 100.0 100.0 100.0 100.0 77.8 94.5 83.3 100.0 97.2
2nd proficiency test
YD 644 (40.3) 96.1 99.5 96.7 98.6 99.6 99.5 99.7 99.7 97.4
SD 398 (24.9) 98.1 97.5 96.3 99.3 99.6 99.3 99.0 99.6 99.8
Roche 192 (12.0) 94.8 100.0 99.6 99.9 99.9 99.8 98.6 99.9 99.2
DFI 140 (8.8) 94.6 85.5 99.5 99.5 99.3 98.8 98.7 98.2 99.7
Siemens 98 (6.1) 95.7 100.0 95.4 100.0 89.6 99.8 94.4 99.7 100.0
Sysmex 91 (5.7) 100.0 100.0 100.0 100.0 99.2 99.7 99.5 100.0 100.0
Eiken 29 (1.8) 87.9 100.0 98.3 100.0 91.4 100.0 100.0 99.1 100.0
Arkray 19 (1.2) 100.0 100.0 100.0 100.0 75.0 100.0 75.0 98.7 97.4
Beckman 9 (0.6) 100.0 100.0 100.0 97.2 83.3 97.2 83.3 100.0 100.0
3rd proficiency test
YD 650 (41.8) 96.7 99.3 97.1 99.4 99.6 99.5 99.6 99.5 98.3
Abbott 337 (21.7) 98.1 96.8 97.2 99.6 99.8 99.6 99.4 99.7 99.5
Roche 189 (12.2) 76.3 99.9 99.6 100.0 100.0 99.9 98.4 100.0 99.6
DFI 149 (9.6) 95.6 87.9 99.0 99.8 98.3 97.7 99.0 97.4 98.0
Siemens 103 (6.6) 84.0 100.0 93.9 100.0 86.4 98.3 93.0 100.0 99.8
Sysmex 103 (6.6) 78.9 100.0 100.0 100.0 99.8 99.8 97.8 99.8 100.0
Eiken 23 (1.5) 88.0 100.0 96.7 100.0 86.9 97.8 100.0 97.6 100.0
Arkray 17 (1.1) 100.0 100.0 100.0 100.0 75.0 100.0 72.1 100.0 100.0
Beckman 10 (0.6) 100.0 97.5 97.5 100.0 82.5 97.5 90.0 100.0 100.0

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), 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), Beckman Coulter Inc. (Brea, CA, USA), and Abbott (Abbott Laboratories, Abbott Park, IL, USA).

Lab Med Qual Assur 2022;44:1~9 https://doi.org/10.15263/jlmqa.2022.44.1.1
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