Copyright © American Speech-Language-Hearing Association From: The Challenge of Detecting Minimal Hearing Loss in Audiometric Surveys Am J Audiol. 2012;21(1):106-119. doi:10.1044/1059-0889(2012/11-0012) Legend: Box and whisker plots of audiometric results for 6- to 11-year-olds (National Health and Nutrition Examination Survey 1988–1994 [NHANES III]; National Center for Health Statistics, 1988–1994) and 12- to 19-year-olds (NHANES III and NHANES 2005–2006). The dark center line in each box represents the median value; the bottom and top of the rectangle represent the 25th and 75th percentile; and each whisker represents an extreme value that is 1.5 times the height of the rectangle in length, except when a less extreme value is present. Values beyond the end of the whiskers are considered extreme values and are represented using small circles. Data represented by these circles have been “jittered” by adding a small random number to each to prevent overprinting. Means are represented by the solid dots within the boxes. The percentages at the bottom of each audiogram represent the percentage of children (not left ears) with high-frequency losses using Shargorodsky et al.'s (2010) definition. This is an observed percentage and not a calculated prevalence as in Shargorodsky et al. Shargorodsky et al. reported a hearing loss prevalence for teens (HFL 1) of 16.4%; the observed percentage of teens with high-frequency hearing loss is 15.8% for the NHANES 2005–2006. Date of download: 10/16/2017 Copyright © American Speech-Language-Hearing Association