1. Date of download: 5/28/2016 Copyright © 2016 American Medical Association. All rights reserved. From: Hearing Loss in Patients With Vestibulotoxic Reactions to Gentamicin Therapy Arch Otolaryngol Head Neck Surg. 2006;132(3):253-257. doi:10.1001/archotol.132.3.253 The dark lines are the audiograms of the better ears for 4 men between ages 55 and 64 years. (The better ear was the ear with lower pure-tone average thresholds across 0.5, 1.0, and 2.0 kHz.) The lighter lines are the 10th, 50th, and 90th percentiles for men of that age group from a database (Annex B) that is based on a 1960-1962 audiometric survey of the US population by the United States Public Health Service. Figure Legend:

2. Date of download: 5/28/2016 Copyright © 2016 American Medical Association. All rights reserved. From: Hearing Loss in Patients With Vestibulotoxic Reactions to Gentamicin Therapy Arch Otolaryngol Head Neck Surg. 2006;132(3):253-257. doi:10.1001/archotol.132.3.253 The better-ear (the ear with lower pure-tone average thresholds across 0.5, 1.0, and 2.0 kHz) audiogram of a 31-year-old man (dark line) is contrasted with the 90th percentile thresholds for his age/sex group (lighter line). Figure Legend:

3. Date of download: 5/28/2016 Copyright © 2016 American Medical Association. All rights reserved. From: Hearing Loss in Patients With Vestibulotoxic Reactions to Gentamicin Therapy Arch Otolaryngol Head Neck Surg. 2006;132(3):253-257. doi:10.1001/archotol.132.3.253 The better-ear (the ear with lower pure-tone average thresholds across 0.5, 1.0, and 2.0 kHz) audiogram of a 50-year-old man (dark line) is contrasted with the 90th percentile thresholds for his age/sex group (lighter line). Figure Legend:

4. Date of download: 5/28/2016 Copyright © 2016 American Medical Association. All rights reserved. From: Hearing Loss in Patients With Vestibulotoxic Reactions to Gentamicin Therapy Arch Otolaryngol Head Neck Surg. 2006;132(3):253-257. doi:10.1001/archotol.132.3.253 The solid line indicates the median age-corrected thresholds for the entire group of 25 patients. The dashed lines show the 95% confidence intervals for the medians. Figure Legend: