Table 3.
Linear equations and their coefficients of determination based on the percentage change in analyte concentration and cell-free Hb concentration as independent variables.
| Blood Parameters | Regression Equation (y-% Bias, x-Hb Conc.) |
R2 | CVa% | HI Cut-off CVa% | RCV | HI Cut-off RCV |
|---|---|---|---|---|---|---|
| BHB | y = 5.3201 x + 0.957 | 0.9913 | 6.15 | 0.96 | 26.5 | 4.81 |
| NEFA | y = 9.8218x + 2.5353 | 0.9972 | 6.42 | 0.39 | 35.1 | 3.31 |
| GLU | y = −2.9538x − 1.401 | 0.9794 | 2.55 | 0.38 | 12.9 | 3.90 |
| ALB | y = 1.0954x + 0.9147 | 0.9762 | 2.21 | 1.12 | 7.6 | 6.11 |
| TPROT | y = 1.0849x + 0.426 | 0.9893 | 2.08 | 1.40 | 7.8 | 6.80 |
| UREA | y = 0.8905x + 0.1979 | 0.9892 | 6.1 | 6.62 | 24.5 | >10 (20.1) |
| TBIL | y = −5.3246x − 1.6739 | 0.9861 | 5.82 | 0.75 | 31.75 | 5.65 |
| AST | y = 15.678x + 5.0673 | 0.9935 | 5.62 | 0.11 | 39.2 | 2.18 |
| GGT | y = −3.2805x + 0.3675 | 0.9874 | 5.25 | 1.71 | 28.9 | 8.90 |
| LDH | y = 21.27x + 16.265 | 0.9843 | 6.12 | 0.01 | 11.6 | 0.11 |
| ALP | y = −2.557x − 2.5083 | 0.9801 | 5.89 | 0.97 | 10.1 | 2.95 |
| TGC | y = 1.8558x + 0.4124 | 0.9936 | 3.29 | 1.56 | 23.6 | >10 (15.5) |
| CHOL | y = 2.3468x + 0.1215 | 0.9932 | 3.14 | 1.29 | 20.2 | 8.56 |
| Ca | y = 0.1944x + 0.0217 | 0.8343 | 1.13 | 5.68 | 10.8 | >10 (25.7) |
| P | y = 1.2163x + 0.4661 | 0.9919 | 1.15 | 0.57 | 10.7 | 8.43 |
| Mg | y = 0.9866x + 0.1498 | 0.9709 | 1.23 | 1.10 | 8.5 | 8.47 |
| INS | y = −5.5017x − 3.7803 | 0.9875 | 10.1 | 1.15 | 25.2 | 3.89 |
| T3 | y = −1.0701x − 0.4693 | 0.9816 | 9.22 | 8.19 | 16.8 | >10 (15.6) |
| T4 | y = −0.9452x − 0.8947 | 0.9797 | 9.31 | 8.91 | 17.5 | >10 (18.5) |
| CORT | y = −2.4264x − 2.5357 | 0.9434 | 9.28 | 2.78 | 27.1 | >10 (11.22) |