WHO classification of middle ear disorders.

<p><b>Source: Smith & Mackenzie 1999</b>[<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0188950#pone.0188950.ref030" target="_blank">30</a>].</p

Tympanic membrane diagnoses in children with hearing impairment >25 dB.

<p>Tympanic membrane diagnoses in children with hearing impairment >25 dB.</p

Final tympanic membrane diagnosis for all study participants.

<p>Final tympanic membrane diagnosis for all study participants.</p

Univariate analysis exploring potential associations of Chronic suppurative otitis media.

<p>Univariate analysis exploring potential associations of Chronic suppurative otitis media.</p