SLHS Department, University of Colorado, Boulder, Colorado 80309-0409, USA.
Int J Audiol. 2013 Feb;52 Suppl 1:S33-40. doi: 10.3109/14992027.2012.745649.
This study was designed to evaluate the usage patterns of portable listening device (PLD) listeners, and the relationships between self-report measures and long-term dosimetry measures of listening habits.
This study used a descriptive correlational design.
Participants (N = 52) were 18-29 year old men and women who completed surveys. A randomly assigned subset (N = 24) of participants had their listening monitored by dosimetry for one week.
Median weekly noise doses reported and measured through dosimetry were low (9-93%), but 14.3% of participants reported exceeding a 100% noise dose weekly. When measured by dosimetry, 16.7% of participants exceeded a 100% noise dose weekly. The self-report question that best predicted the dosimetry-measured dose asked participants to report listening duration and usual listening level on a visual-analog scale.
This study reports a novel dosimetry system that can provide accurate measures of PLD use over time. When not feasible, though, the self-report question described could provide a useful research or clinical tool to estimate exposure from PLD use. Among the participants in this study, a small but substantial percentage of PLD users incurred exposure from PLD use alone that increases their risk of music-induced hearing loss.
本研究旨在评估便携式听力设备 (PLD) 使用者的使用模式，以及自我报告测量值与长期听力习惯的剂量学测量值之间的关系。
本研究采用描述性相关性设计。
参与者（N=52）为 18-29 岁的男性和女性，他们完成了调查。随机抽取的一小部分（N=24）参与者通过剂量学监测了一周的听力情况。
报告和通过剂量学测量的每周噪声剂量中位数较低（9-93%），但 14.3%的参与者报告每周超过 100%的噪声剂量。通过剂量学测量，16.7%的参与者每周超过 100%的噪声剂量。通过自我报告询问，最好地预测了通过剂量学测量的剂量，要求参与者在视觉模拟量表上报告听力持续时间和通常的听力水平。
本研究报告了一种新颖的剂量学系统，可提供随时间推移的 PLD 使用的准确测量值。但是，如果不可行，上述自我报告问题可以提供一种有用的研究或临床工具，用于估计来自 PLD 使用的暴露情况。在本研究的参与者中，一小部分但相当大比例的 PLD 用户仅通过 PLD 使用就受到了暴露，这增加了他们患音乐性听力损失的风险。
