Which of the following statements about otitis media is true?
◦ Plastic tubes that drain the Eustachian tubes often are used to treat chronic otitis media in children.
◦ Compared with children remaining at home, otitis media occurs less often in children who attend child-care centers.
◦ Only about 20 percent of U.S. children have experienced three or more bouts of otitis media.
◦ The incidence of otitis media is greatest between 3 and 5 years.