Demographic and laboratory characteristics of patients and healthy controls in training and test sets.

Median values [min-max range]; AA = African-American, C = Caucasian, H = Hispanic, O = Other; M = Male, F = Female; WBC = White Blood Count; RBC = Red Blood Cell count; MCV = Mean Corpuscular Volume; MCH = Mean Corpuscular Hemoglobin; MCHC = Mean Corpuscular Hemoglobin Concentration; RDW = Red blood cell Distribution Width; MPV = Mean Platelet Volume; ESR = Erythrocyte Sedimentation Rate; CRP = C-reactive Protein; *only 1 sample. Statistics: for categorical variables, Fisher's exact test is used; for continuous variables, Mann-Whitney test is used.