Patent ID: 8744776

Claim:
A method for determining an analyte concentration in a sample, comprising: (a) applying the sample to a test sensor; (b) applying an electrical or optical input signal to the sample; (c) measuring at least one uncompensated output signal value i from the sample, wherein the value i is responsive to an undetermined concentration of the analyte in the sample; (d) determining at least one slope deviation ΔS value from a first complex index function f(CIndex) including at least a first term and a second term, wherein the first term includes a product of a first weighing coefficient and at least a first error parameter; and the second term includes a product of a second weighing coefficient and at least a second error parameter; (e) determining a corrected analyte concentration A corr in the sample from the at least one uncompensated output signal value by adjusting a previously determined reference slope S cal with the at least one slope deviation ΔS value and combining the adjusted slope with the at least one uncompensated output signal value, wherein steps (d) and (e) are performed by a processor using computer readable software code.