Test-retest reliability of low-level evoked distortion product otoacoustic emissions.
Test-retest reliability of low-level evoked distortion product otoacoustic emissions.
复制标题
DOI：
10.1044/1092-4388(2008/08-0118
复制
发表时间：
2009-06
期刊：
影响因子：
--
通讯作者：
A. Stuart;Amy L Passmore;Deborah S. Culbertson;Sherri M. Jones
中科院分区：
文献类型：
--
作者：
A. Stuart;Amy L Passmore;Deborah S. Culbertson;Sherri M. Jones
目的探讨低水平诱发畸变产物耳声发射（DPOAEs）的重测信度与L（1）、L（2）水平、f（2）频率和测试条件的关系。这些变量和DPOAE反应的存在/不存在之间的预测关系也进行了检查。方法16名听力正常的年轻人参加了研究。在45 ~ 30 dB SPL的4个L（2）水平下，诱发12个f（2）频率范围为1500 ~ 7546 Hz的音调的DPOAE。采用了四种测试条件：（a）初始测试，（B）在不移除探针的情况下重新测试，（c）重新插入探针的情况下重新测试，以及（d）由第二名测试人员重新插入探针的情况下重新测试。结果L（1）、L（2）水平和f（2）频率是DPOAE反应的统计学显著（p <0.0001）预测因子（即，无论测试条件如何，在较高的L（1）、L（2）水平和较低的f（2）频率下更可能观察到DPOAE响应的存在。DPOAE水平受L（1）、L（2）水平和f（2）频率的显著影响（p <0.0001），但不受测试条件的影响。内部和测试者之间的重测差异没有显着差异。结论：缺失反应的普遍存在，加上受试者间的巨大变异性和受试者内的重测变异性，不利于低水平刺激诱发的DPOAE的临床实用性。
PURPOSE The purpose of this study was to examine test-retest reliability of low-level evoked distortion product otoacoustic emissions (DPOAEs) as a function of L(1), L(2) level; f(2) frequency; and test condition. A predictive relationship between these variables and the presence/absence of DPOAE responses was also examined. METHOD Sixteen normal-hearing young adults participated. DPOAEs were evoked to 12 tones with f(2) frequencies ranging from 1500 Hz to 7546 Hz at 4 L(2) levels between 45 dB SPL and 30 dB SPL. Four test conditions were employed: (a) initial test, (b) retest without probe removal, (c) retest with probe reinsertion, and (d) retest with probe reinsertion by a second tester. RESULTS L(1), L(2) level and f(2) frequency were statistically significant (p < .0001) predictors of a DPOAE response (i.e., the presence of a DPOAE response was more likely to be observed at higher L(1), L(2) levels and lower f(2) frequencies regardless of test condition). DPOAE levels were significantly affected by L(1), L(2) level and f(2) frequency (p < .0001) but not by test condition. Intra- and intertester test-retest differences were not significantly different. CONCLUSIONS The prevalence of missing responses coupled with large intersubject variability and intrasubject test-retest variability are a detriment to the clinical utility of DPOAEs evoked with low-level stimuli.