Baseline estimation for serum creatinine for definition of acute kidney injury

Estimation process for baseline of Serum Creatinine (SCr) is constructed for Acute Kidney Injury (AKI) where baseline is necessary for definition. In order to deal with missing value, the estimation process calculates the baseline values for different stable interval, which the definition process select the appropriate interval based on the number of days from the target test day. The estimation process is applied to the real SCr data in Kochi Medical School hospital. The experiment result shows that the process extracts the 12.7% of non AKI patients as possible AKI. The constructed process can provides the appropriate non AKI patient data for retrospective study with hospital data.