Table 2

Correlation, bias, and limits of agreement between hemoglobin level using HemoCue^® and automated hematology analyzer

Comparison of methods

Correlation Coefficient

Bias ± SD (95%CI)

Limits of agreement

HemoCue^® (venous) vs. Hematology analyzer

0.58

1.17 ± 1.57 (0.87; 1.47)

-1.97 to 4.31

HemoCue^® (capillary) vs. Hematology analyzer

0.51

1.34 ± 1.85 (0.99; 1.69)

-2.36 to 5.04

HemoCue^® (venous) vs. HemoCue^® (capillary)

0.51

-0.17 ± 1.90 (-0.53; 0.19)

-3.97 to 3.63

Adam et al. Diagnostic Pathology 2012 7:30   doi:10.1186/1746-1596-7-30