CREATE TABLE table_train_280 ("id" INT, "fpg" FLOAT, "hemoglobin_a1c_hba1c" FLOAT, "heart_disease" BOOLEAN, "renal_disease" BOOLEAN, "hba1c" FLOAT, "body_mass_index_bmi" FLOAT, "NOUSE" FLOAT)

body mass index ( bmi ) < 30 kg / m2
SELECT * FROM table_train_280 WHERE body_mass_index_bmi < 30
SELECT * FROM "table_train_280" WHERE "body_mass_index_bmi" < 30