Aarhus et al (2015) report some 33,000 children were tested through pure-tone audiometry in Norway, and re-tested between ages 20 to 56 years. Of those 33,000 children, 3,066 children were reported to have hearing loss. Of note, otitis media with effusion (OME) was diagnosed in 1,255 children, chronic supparative otitis media (CSOM) was diagnosed in 108, and recurrent acute otitis media (rAOM) was diagnosed in 613 children.