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Table 1 Intra- and interassay coefficients of variation (CV) of urea and creatinine in canine saliva

From: Measurement of urea and creatinine in saliva of dogs: a pilot study

Assay Comparison Sample Mean SD CV (%)
Urea, mg/dL Intra-assay Sample 1 32.74 0.36 1.1
Sample 2 190.84 1.04 0.5
Inter-assay Sample 1 32.78 0.40 1.2
Sample 2 194.20 2.79 1.4
Creatinine, mg/dL Intra-assay Sample 1 0.19 0.02 8.2
Sample 2 1.83 0.02 0.9
Inter-assay Sample 1 0.19 0.02 11.9
Sample 2 1.86 0.14 7.5