Table 2:

Comparison of audiometric data in ears for patients with unilateral IAC diverticula in the absence of otosclerosis (N = 22)^{^a}

	No.^{^b}	IAC Diverticulum	No IAC Diverticulum	Difference^{^c}	P Value^{^d}
Bone conduction pure tone average	22	22.5 (13–41)	17 (8–35)	1 (−4–17)	.31
BC 250 Hz (dB)	20	17.5 (7.5–25)	12.5 (7.5–20)	2.5 (−5–15)	.19
BC 500 Hz (dB)	21	20 (10–40)	15 (10–25)	5 (0–20)	.14
BC 1000 Hz (dB)	20	22.5 (10–40)	15 (5–27.5)	0 (−2.5–25)	.17
BC 2000 Hz (dB)	19	30 (10–50)	20 (10–45)	0 (−10–15)	.50
BC 3000 Hz (dB)	18	25 (7.5–47.5)	20 (10–55)	0 (−10–15)	.63
BC 4000 Hz (dB)	21	25 (10–50)	35 (15–60)	0 (−5–5)	.97
Air conduction pure tone average	22	31 (20–75)	20 (9–41)	4 (1–29)	.06
AC 250 Hz (dB)	22	22.5 (15–60)	17.5 (10–35)	2.5 (−5–20)	.19
AC 500 Hz (dB)	22	25 (15–75)	22.5 (10–40)	2.5 (−5–20)	.30
AC 1000 Hz (dB)	22	27.5 (15–75)	20 (5–40)	5 (0–30)	.06
AC 2000 Hz (dB)	22	32.5 (15–70)	20 (5–50)	10 (0–30)	.10
AC 3000 Hz (dB)	20	37.5 (15–60)	20 (12.5–62.5)	5 (−5–25)	.34
AC 4000 Hz (dB)	22	40 (20–85)	37.5 (15–70)	5 (−5–40)	.22
Air-bone gap	22	5 (0–12)	0 (0–5)	2 (0–9)	.37
Word recognition (%)	17	100 (85–100)	100 (95–100)	0 (−15–0)	.55