CREATE TABLE table_test_13 ("id" NUMBER, "systolic_blood_pressure_sbp" NUMBER, "tachycardia" NUMBER, "diastolic_blood_pressure_dbp" NUMBER, "total_cholesterol" NUMBER, "high_density_lipoprotein_cholesterol_hdl_c" NUMBER, "serum_creatinine" FLOAT, "alcohol_abuse" BOOLEAN, "drug_abuse" BOOLEAN, "body_mass_index_bmi" FLOAT, "triglyceride_tg" FLOAT, "age" FLOAT, "NOUSE" FLOAT)

high density lipoprotein cholesterol >= 40 mg / dl ( 14 mmol / l )
SELECT * FROM table_test_13 WHERE high_density_lipoprotein_cholesterol_hdl_c >= 40
SELECT * FROM "table_test_13" WHERE "high_density_lipoprotein_cholesterol_hdl_c" >= 40