CREATE TABLE table_train_168 ("id" INT, "cholesterol" FLOAT, "hemoglobin_a1c_hba1c" FLOAT, "triglyceride_tg" FLOAT, "fasting_glucose" INT, "NOUSE" FLOAT)

documented hemoglobin a1c ( hba1c ) < 7.5 % at time of entry
SELECT * FROM table_train_168 WHERE hemoglobin_a1c_hba1c < 7.5
SELECT * FROM "table_train_168" WHERE "hemoglobin_a1c_hba1c" < 7.5