We noticed 38/198 missing values for serum albumin which had a normal distribution, so we used the following multiple imputation model to impute for missing serum albumin (Y).Serum albumin (Y) = β0 + β1 Sex + β2 Age+ β3 Admission to ICU+ β4 Acute kidney injury + β5 CCI + β6 average colistin dose per weight per day(1). The gene discussed is ALB; the disease is acute kidney injury.