CREATE TABLE table_train_236 ("id" INT, "renal_disease" BOOLEAN, "creatinine_clearance_cl" FLOAT, "estimated_glomerular_filtration_rate_egfr" INT, "hba1c" FLOAT, "fbg" INT, "NOUSE" FLOAT)

estimated glomerular filtration rate less than 45 ml / min
SELECT * FROM table_train_236 WHERE estimated_glomerular_filtration_rate_egfr < 45
SELECT * FROM "table_train_236" WHERE "estimated_glomerular_filtration_rate_egfr" < 45