Laboratory Medicine and Quality Assurance

Table. 6.

Peer-group coefficients of variation (%) according to the test and trials of urine chemistry in 2019

Test Trials
CUC-19-01 CUC-19-02 CUC-19-03 CUC-19-04 CUC-19-05 CUC-19-06
Albumin 19.1 29.3 19.2 15.8 27.0 14.6
Calcium 2.6 3.8 2.7 2.2 4.0 2.4
Chloride 2.0 7.3 2.1 2.1 7.0 2.2
Creatinine 4.3 5.2 5.0 4.8 4.7 4.7
Glucose 2.0 3.6 2.2 2.4 3.6 2.3
Magnesium 4.0 3.9 4.1 3.3 3.0 3.1
Phosphorus 2.6 2.8 2.9 2.2 2.2 1.8
Potassium 3.3 1.9 2.9 2.7 1.9 2.7
Protein 8.7 8.6 8.0 8.1 7.4 8.6
Sodium 1.2 2.7 1.2 1.3 2.5 1.1
Urea nitrogen 3.6 3.9 3.5 3.2 3.6 3.4
Uric acid 3.5 4.7 3.6 3.7 5.7 3.8
Lab Med Qual Assur 2020;42:97~111 https://doi.org/10.15263/jlmqa.2020.42.3.97
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