Cho Yong Min, Lim Hee Jin, Jang Hoon, Kim Kyunghee, Choi Jae Wook, Shin Chol, Lee Seung Ku, Kwon Jong Hwa, Kim Nam
Institute for Life and Environment Technology, Smartive Corporation, Seoul, Korea.
Institute for Occupational and Environmental Health, Korea University, Seoul, Korea.
Environ Health Toxicol. 2016 Dec 29;32:e2017001. doi: 10.5620/eht.e2017001. eCollection 2016.
The duration and frequency of mobile phone calls, and their relationship with various health effects, have been investigated in our previous cross-sectional study. This 2-year period follow-up study aimed to assess the changes in these variables of same subjects. The study population comprised 532 non-patient adult subjects sampled from the Korean Genome Epidemiology Study. The subjects underwent a medical examination at a hospital in 2012/2013 and revisited the same hospital in 2014/2015 to have the same examination for the characteristics of mobile phone use performed. In addition, to evaluate the effects on health, the Headache Impact Test-6 (HIT-6), Psychosocial Well-being Index-Short Form, Beck Depression Inventory, Korean-Instrumental Activities of Daily Living, Perceived Stress Scale, Pittsburgh Sleep Quality Index, and 12-item Short Form Health Survey were analyzed. For all these tests, the higher the score, the greater the effect on health. Variances between scores in all the indices in the baseline and follow-up surveys were calculated, and correlations of each index were analyzed. The average duration per call and HIT-6 score of the subjects decreased significantly compared with those recorded two years ago. The results showed a slight but significant correlation between call duration changes and HIT-6 score changes for female subjects, but not for males. HIT-6 scores in the follow-up survey significantly decreased compared to those in the baseline survey, but long-time call users (subjects whose call duration was ≥5 minutes in both the baseline and follow-up surveys) had no statistically significant reduction in HIT-6 scores. This study suggests that increased call duration is a greater risk factor for increases in headache than any other type of adverse health effect, and that this effect can be chronic.
在我们之前的横断面研究中，已经对手机通话的时长和频率及其与各种健康影响之间的关系进行了调查。这项为期两年的随访研究旨在评估同一受试者这些变量的变化情况。研究人群包括从韩国基因组流行病学研究中抽取的532名非患病成年受试者。这些受试者在2012/2013年在一家医院接受了医学检查，并于2014/2015年再次前往同一家医院进行相同的检查，以了解手机使用特征。此外，为了评估对健康的影响，对头痛影响测试-6（HIT-6）、心理幸福感指数简表、贝克抑郁量表、韩国日常生活工具性活动量表、感知压力量表、匹兹堡睡眠质量指数和12项简短健康调查问卷进行了分析。对于所有这些测试，得分越高，对健康的影响越大。计算了基线调查和随访调查中所有指标得分之间的方差，并分析了每个指标的相关性。与两年前记录的情况相比，受试者的每次通话平均时长和HIT-6得分显著下降。结果显示，女性受试者的通话时长变化与HIT-6得分变化之间存在轻微但显著的相关性，而男性则不存在。随访调查中的HIT-6得分与基线调查相比显著下降，但长期通话用户（在基线调查和随访调查中通话时长均≥5分钟的受试者）的HIT-6得分没有统计学上的显著降低。这项研究表明，通话时长增加是导致头痛增加的比任何其他类型不良健康影响更大的风险因素，而且这种影响可能是慢性的。
