Every CREATE DATABASE IF NOT EXISTS statement is replicated, whether or not the database already exists on the master.

Similarly, every CREATE TABLE IF NOT EXISTS statement without a SELECT is replicated, whether or not the table already exists on the master. This includes CREATE TABLE IF NOT EXISTS ... LIKE. Replication of CREATE TABLE IF NOT EXISTS ... SELECT follows somewhat different rules; see Section 17.4.1.6, “Replication of CREATE TABLE ... SELECT Statements”, for more information.

CREATE EVENT IF NOT EXISTS is always replicated in MySQL 5.5, whether or not the event named in the statement already exists on the master.