- 學位論文
行動電話年輕使用族群之聽覺閾值、非特異性自覺症狀研究：兩年追蹤
Hearing ability and nonspecific subjective symptoms among young mobile phone users: a two-year follow-up study
摘要
使用行動電話時，電話的天線靠近人的頭部，而且手機緊貼耳部，所以長期暴露於無線電波（RF）下可能會影響聽覺系統及引起非特異性自覺症狀的發生。故本研究將分別就：(1) 年輕行動電話使用族群之聽覺閾值、及(2)年輕行動電話使用族群之非特異性自覺症狀兩個部分進行探討。 我們將根據第一年的研究族群，持續對高雄某大學的(1)149位研究對象做問卷追蹤調查和純音聽力檢查、及(2) 394位研究對象做問卷追蹤調查。問卷內容包括個人基本資料、行動電話使用情形、休閒娛樂噪音暴露、非特異性自覺症狀之發生、電腦使用情形。 研究結果：(1) 回收率為89.73﹪，與第一年的研究結果比較後發現，第二年在2kHz、3kHz、4kHz、8kHz等頻率的聽力閾值均比第一年高（p＜0.001），但500Hz和1 kHz的聽力閾值卻比第一年低（p＜0.001）。(2) 回收率為88.27﹪，第二年發生難以專心及感覺疲勞二種症狀的比例有增加的情形（p＜0.001），但發生眩暈的盛行率則有減少的情形（p＜0.001）。 使用行動電話會對聽覺系統造成影響且有頻率的差異性，但本研究為第一篇探討使用行動電話與聽覺系統的縱斷性研究，因此有關其真實性，可能仍需進一步的研究予以探討。非特異性自覺症狀的發生與使用行動電話具相關性，且使用行動電話可能會增加某些非特異性自覺症狀的發生，但目前關於使用行動電話與非特異性自覺症狀的研究結果並不一致，且症狀的發生均缺乏相關的診斷標準，所以未來的研究應配合症狀的診斷標準，以了解行動電話與非特異性自覺症狀之間的相關性。
並列摘要
The mobile phone antennas give localized radiofrequency（RF）exposure predominantly to the head and pressed close to the ear .The effects of long-term using mobile phone maybe effect the hearing ability and experience nonspecific subjective symptoms. The purpose of this study was 1) to explore the hearing ability among young mobile phone users；2) the experience of nonspecific subjective symptoms among young mobile phone users. Based on the first year study population, 1)continuing send out 146 questionnaires to the college students in Kaohsiung city and arranged them receive pure-tone hearing tests；2) send out 375 questionnaires to the college students in Kaohsiung city. The questionnaire comprised personnel characters, the situation of mobile phone use, noise exposure of leisure time, experience of nonspecific subjective symptoms, frequency of using personal computer（PC）. The results showed that 1) the response-rate was 89.73％. Compared to the first year data, the hearing ability was higher at 2,3,4,8kHz（P＜0.05）,but lower at 500Hz,1 kHz（P＜0.05）；2) The response-rate was 88.27％. Compared to the first year data, the percentage of experienced difficulty in concentration and fatigue have increased（P＜0.05）, but experienced dizziness have decreased（P＜0.05）. Using mobile phone may have an influence on hearing ability and was different of frequency. This is the first follow-up study to investigate using mobile phone and hearing ability, the reality needs further follow-up studies. Using mobile phone was related to nonspecific subjective symptoms and may increase the experience of some symptoms. The results were not consistent and lacking of the diagnosis of symptoms. The further study should accompany the diagnosis of symptoms to explore the effect of nonspecific subjective symptoms on mobile phone users.