CREATE TABLE table_train_250 ("id" INT, "gender" TEXT, "waist_to_hip_ratio" FLOAT, "creatinine_clearance_cl" FLOAT, "panel_reactive_antibodies" INT, "insulin_requirement" FLOAT, "serum_creatinine" FLOAT, "NOUSE" FLOAT)

creatinine clearance < 75 ml / min / 1.73 m2
SELECT * FROM table_train_250 WHERE creatinine_clearance_cl < 75
SELECT * FROM "table_train_250" WHERE "creatinine_clearance_cl" < 75