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. Author manuscript; available in PMC: 2019 Mar 1.

Published in final edited form as: Otol Neurotol. 2018 Mar;39(3):357–364. doi: 10.1097/MAO.0000000000001690

TABLE 1.

Summary of patient characteristics

	Mean (SD)	Audiometric Data

Age, years	30.9 (19.2)		Baseline, mean (SD)	End, mean (SD)	Difference, mean (SD)	Rate, dB/yr, mean (SD)

Follow-up, years	3.9 (1.2)	4f-PTA, dB	23.8 (22.4)	33.7 (30.3)	9.9 (16.9)	2.6 (4.4)
Gender	N (%)	SRT, dB	17.3 (16.9)	24.0 (22.6)	6.6 (11.9)	1.7 (3.4)

Female	43 (60.6)	Volumetric Data
Male	28 (39.4)	Baseline, mean (SD)	End, mean (SD)	Difference, mean (SD)		Rate, mm3/yr, mean (SD)

Ear	N (%)	IAC volume, mm3	165.1 (144.5)	270.4 (190.4)	105.2 (107.4)	31.0 (38.4)

Left	55 (49.5)	PF volume, mm3	90.1 (153.0)	534.8 (1217.7)	444.7 (1186.2)		119.4 (304.3)
Right	56 (50.5)	Total volume, mm3	255.3 (247.3)	805.2 (1312.3)	549.9 (1212.4)		150.4 (312.4)

4f-PTA: Four frequency pure tone average (0.5, 1, 2, 4 kHz), IAC: internal auditory canal, PF: posterior fossa