Table 4.
Intra-assay coefficients of variation (CVs) at low (L1), intermediate (L2), and high (L3) concentrations of canine serum progesterone for a point-of-care analyzer (POC) and reference chemiluminescent assay (CLIA).
| Level | N | Mean | SD | CV (%) |
|---|---|---|---|---|
| L1 (CLIA) | 10 | 2.12 ng/mL | 0.12 ng/mL | 5.89 |
| 6.74 nmol/L | 0.40 nmol/L | |||
| L1 (POC) | 10 | 1.4 ng/mL | 0.2 ng/mL | 15.3 |
| 4.3 nmol/L | 0.7 nmol/L | |||
| L2 (CLIA) | 10 | 7.58 ng/mL | 0.37 ng/mL | 4.89 |
| 24.10 nmol/L | 1.18 nmol/L | |||
| L2 (POC) | 10 | 12.3 ng/mL | 0.9 ng/mL | 7.0 |
| 39.2 nmol/L | 2.8 nmol/L | |||
| L3 (CLIA) | 10 | 10.30 ng/mL | 0.35 | 3.44 |
| 32.74 nmol/L | 1.13 nmol/L | |||
| L3 (POC) | 10 | 14.9 ng/mL | 0.7 ng/mL | 4.7 |
| 47.3 nmol/L | 2.2 nmol/L |
N, sample number; SD, standard deviation.