From: Effects of different centrifugation conditions on clinical chemistry and Immunology test results
Parameter | Condition | Constant bias | Proportional bias |
---|---|---|---|
Bilirubin direct | T 22; C 1 : C 2 | 0.12 (0.06 to 0.18) | 0.99 (0.98 to 0.99) |
Bilirubin total | T 11; C 2 : C 3 | 0.24 (0.04 to 0.44) | 0.96 (0.94 to 0.99) |
Calcium | T 11; C 1 : C 3 | -0.18 (-0.33 to -0.02) | 1.08 (1.01 to 1.15) |
Folic acid | T 22; C 2 : C 3 | 0.98 (0.24 to 1.72) | 0.95 (0.91 to 0.99) |
Iron | T 22; C 1 : C 3 | -0.22 (-0.43 to -0.02) | 1.02 (1.01 to 1.03) |
Transferrin | T 22; C 2 : C 3 | -0.84 (-1.67 to -0.02) | 1.04 (1.01 to 1.06) |