Table 4.

Frequency of primary otologic diagnosis categories by age group.

Diagnostic Category	Pediatric N=5,484,720 Percentage (SE)	Adult N=3,126,562 Percentage (SE)	P-value
Suppurative and unspecified otitis media	82.1% (0.3)	32.4% (0.3)	<0.0001
Disorders of the external ear	9.0% (0.1)	28.8% (0.3)
Other disorders of the ear	5.5% (0.1)	12.3% (0.2)
Vertiginous syndromes and other disorders of the vestibular system	0.2% (0.001)	19.1% (0.3)
Non-suppurative otitis media and Eustachian tube disorders	2.5% (0.1)	4.3% (0.1)
Other disorders of the tympanic membrane	0.6% (0.01)	1.5% (0.03)
Mastoiditis and related conditions	0.1% (0.01)	0.6% (0.01)
Hearing loss	0.04% (0.002)	0.7% (0.1)
Other disorders of the middle ear and mastoid	0.05% (0.01)	0.1% (0.01)
Otosclerosis	0.002% (0.0004)	0.006% (0.002)