Table 3.
Agreement analysis between RAPIDPOINT 500 and AU5800
| Parameter | Bias | Limits of agreement | No. of pairs outside LoA | Pearson's coefficient | ||||
|---|---|---|---|---|---|---|---|---|
| A a | B b | A a | B b | A a | B b | A a | B b | |
| Sodium (mmol/L) | −5.32 | −0.60 | −10.90 to 0.27 | −5.25 to 4.04 | 6 (3%) | 10 (5%) | 0.883 | 0.904 |
| Potassium (mmol/L) | −0.08 | −0.15 | −0.32 to 0.16 | −0.45 to 0.14 | 4 (2%) | 7 (3.5%) | 0.960 | 0.971 |
| Chloride (mmol/L) | −1.50 | −0.07 | −5.10 to 2.11 | −0.87 to 0.52 | 7 (3.5%) | 6 (3%) | 0.941 | 0.959 |
| Glucose (mmol/L) | −0.17 | −0.33 | −0.87 to 0.52 | −1.24 to 0.58 | 3 (1.5%) | 10 (5%) | 0.989 | 0.979 |
a
Arterial blood by RAPID POINT 500 vs Arterial plasma by AU5800.
b
Arterial blood by RAPID POINT 500 vs Venous plasma by AU5800.