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KMID : 0615720140310020099
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Jouranl of Korean Acupuncture and Moxibustion society
2014 Volume.31 No. 2 p.99 ~ p.109
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The Correlation Analysis between Hours of Smartphone Use And Neck Pain in the Gachon University Students
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Lee Ji-In
Song Ho-Sueb
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Abstract
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Objectives: The purpose of this study was to analysis the relationship between hours of smartphone use and neck pain in university students.
Methods: A survey of 2,353 university students was conducted in Gyeonggi province and Incheon city using a self report questionnaire from April 1 to 11 2013. The questionnaire of questions regarding the hours of using smartphone, mainly used function in participant’s smartphone and neck discomfort degree. Neck disability index(NDI) was used to evaluate degree of pain. The collected data were analyzed with the t-test and Kendall’s tau test using the SPSS 21.0 program and R 3.1.0, respectively.
Results: 1.Almost all of the survey participants(99.07 %) were smartphone users. 66.97 % of them answered that they use their smartphone daily more than 2 hours and 48.18 % of them answered that they use their smartphone 10 to 30 minutes everytime they use it.
2.The overall distribution of NDI scores was ‘no disability(0~4 score, 62.92 %)’, ‘mild disability(5~14 score, 32.85 %)’, ‘moderate disability(15~24 score, 1.19 %)’. As a result of t-test, we found that the average NDI score for female students was significantly higher than the average NDI score for male students(p<0.05).
3.The Kendall’s tau test revealed that total time spent daily using smartphones has a strong positive correlation with ‘pain intensity’, ‘lifting’, ‘reading’ ‘headache’, ‘concentration’, and ‘driving’(p<0.05) in NDI. Also, time duration of one time smartphone usage has a strong positive correlation with ‘pain intensity’, ‘lifting’, ‘reading’, ‘headache’, ‘concentration’, ‘work’, and ‘recreation’(p<0.05).
4.The Kendall’s tau test revealed that total NDI scores have a significantly strong positive correlation with both of total time spent daily using smartphones(p<0.05) and time duration for one time smartphone usage(p<0.05). This results imply that long-time use of smartphone has a strong relationship with neck pain.
Conclusions : The results of the study would be a good starting point for future studies to reduce the risks of chronic neck pain caused by smartphone usage.
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KEYWORD
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Smartphone, NDI, Headache, Neck pain
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