Table 1.

Descriptive statistics for progesterone concentrations obtained from 100 canine serum samples analyzed using a reference chemiluminescent immunoassay (CLIA) and two point-of-care analyzers (POC-1 and POC-2).

Method	N	Mean ± SD	95% CI of the Mean	Range
CLIA	100	6.77 ± 7.19 ng/mL	5.34–8.20 ng/mL	0.20–30.50 ng/mL
		21.54 ± 22.87 nmol/L	17.00–26.07 nmol/L	0.64–96.99 nmol/L
POC-1	75	4.5 ± 4.8 ng/mL	3.4–5.7 ng/mL	0.2–19.8 ng/mL
		14.4 ± 15.6 nmol/L	10.8–18.0 nmol/L	0.6–59.8 nmol/L
POC-2	74	5.2 ± 5.6 ng/mL	3.9–6.5 ng/mL	0.2–18.8 ng/mL
		16.7 ± 17.9 nmol/L	12.5–20.8 nmol/L	0.6–63.0 nmol/L

CI, confidence interval; N, sample number; SD, standard deviation.