CREATE TABLE table_train_52 ("id" NUMBER, "pregnancy_or_lactation" BOOLEAN, "consent" BOOLEAN, "surgery" BOOLEAN, "hemodynamic_instability" BOOLEAN, "age" FLOAT, "NOUSE" FLOAT)

pregnancy ( bhcg test positivity )
SELECT * FROM table_train_52 WHERE pregnancy_or_lactation = 1
SELECT * FROM "table_train_52" WHERE "pregnancy_or_lactation" = 1