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首页> 外文期刊>Occupational and environmental medicine >A new method to determine laterality of mobile telephone use in adolescents.
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A new method to determine laterality of mobile telephone use in adolescents.

机译：确定青少年使用移动电话的侧面性的新方法。

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OBJECTIVES: As more children use mobile (cellular) telephones, public anxiety grows about the possible adverse health effects of radiofrequency (RF) exposure upon developing nervous systems. Most epidemiological studies investigating the health effects of mobile telephones have relied on self-reports from questionnaires. While there are some validation studies investigating the accuracy of self-reported mobile phone use in adults and adolescents, self-reported laterality of use has not been validated at any age. Although this study mainly sought to validate the accuracy of self-reported laterality of mobile telephone use in adolescents, investigation also covered number and duration of calls. METHODS: We monitored 455 calls in 30 students, mean age (SD) 14 (0.4) years. For 1 week, participants used hardware modified phones (HMPs) which logged dosimetric parameters such as laterality (side of head), date, number and duration of calls. These 'gold standard' measurements were compared with questionnaire self-reported laterality and estimated typical weekly phone use. RESULTS: Agreement between HMPs and self-reported laterality was modest (kappa=0.3, 95% CI 0.0 to 0.6). Concordance between HMP measured and self-reported number of calls was fair (intraclass correlation coefficient (ICC)=0.38, 95% CI 0.07 to 0.69), but poor for duration (ICC=0.01, 95% CI 0.00 to 0.37) with wide limits of agreement for both. CONCLUSIONS: These results suggest that adolescent self-reported laterality was of limited validity. Adolescent self-reported phone use by number and duration of calls was generally inaccurate but comparable to recent adult studies. Epidemiological studies of mobile phone use based on self-reported information may underestimate true associations with health effects.
机译：目的：随着越来越多的儿童使用移动（蜂窝）电话，公众越来越担心射频（RF）暴露对神经系统发育可能产生的不利健康影响。大多数调查移动电话对健康的影响的流行病学研究都依赖于问卷的自我报告。尽管有一些验证研究调查了成年人和青少年自我报告的手机使用的准确性，但任何年龄的自我报告的使用侧向性都尚未得到证实。尽管该研究主要旨在验证青少年使用移动电话自我报告的侧向准确性，但调查也涵盖了通话次数和持续时间。方法：我们监测了30名学生的455个电话，平均年龄（SD）14（0.4）岁。在1周的时间里，参与者使用了硬件修改过的电话（HMP），该电话记录了剂量参数，例如侧面（头部），日期，通话次数和持续时间。将这些“黄金标准”测量值与调查表自我报告的偏向度进行了比较，并估计了每周的典型电话使用量。结果：HMPs和自我报告的侧向性之间的一致性适中（kappa = 0.3，95％CI 0.0到0.6）。测得的HMP与自我报告的呼叫次数之间的一致性是合理的（类内相关系数（ICC）= 0.38，95％CI 0.07至0.69），但持续时间较差（ICC = 0.01，95％CI 0.00至0.37）且范围较宽双方都同意。结论：这些结果表明，青少年自我报告的侧向效度有限。青春期自我报告的电话使用次数和通话时间通常不准确，但与最近的成人研究相当。根据自我报告的信息对手机使用进行的流行病学研究可能低估了与健康影响的真实关联。

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