| Is It Valid to Calculate the 3-Kilohertz Threshold by Averaging 2 and 4 Kilohertz? | |
| | |
MedLine Citation:
|
PMID: 22301102 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
Many guidelines for reporting hearing results use the threshold at 3 kilohertz (kHz), a frequency not measured routinely. This study assessed the validity of estimating the missing 3-kHz threshold by averaging the measured thresholds at 2 and 4 kHz. The estimated threshold was compared to the measured threshold at 3 kHz individually and when used in the pure-tone average (PTA) of 0.5, 1, 2, and 3 kHz in audiometric data from 2170 patients. The difference between the estimated and measured thresholds for 3 kHz was within ±5 dB in 72% of audiograms, ±10 dB in 91%, and within ±20 dB in 99% (correlation coefficient r = 0.965). The difference between the PTA threshold using the estimated threshold compared with using the measured threshold at 3 kHz was within ±5 dB in 99% of audiograms (r = 0.997). The estimated threshold accurately approximates the measured threshold at 3 kHz, especially when incorporated into the PTA. |
| | |
Authors:
|
Richard K Gurgel; Gerald R Popelka; John S Oghalai; Nikolas H Blevins; Kay W Chang; Robert K Jackler |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2012-2-2 |
Journal Detail:
|
Title: Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery Volume: - ISSN: 1097-6817 ISO Abbreviation: - Publication Date: 2012 Feb |
Date Detail:
|
Created Date: 2012-2-3 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 8508176 Medline TA: Otolaryngol Head Neck Surg Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
|
Department of Otolaryngology-Head and Neck Surgery, Stanford University, Stanford, California, USA. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Bioactivity and prognostic significance of growth differentiation factor GDF15 secreted by bone marr...
Next Document: Atypical Mycobacterium Detection in Refractory Chronic Rhinosinusitis.