Prevalence rate of Internet addiction among Japanese college students: Two cross‐sectional studies and reconsideration of cut‐off points of Young's Internet Addiction Test in Japan
Aim Due to variation in estimates of the prevalence of Internet addiction (IA) in prior research, we conducted two cross‐sectional studies over 2 years investigating the prevalence rate of IA in college students in Japan and reconsidered appropriate cut‐off points of a self‐rating scale to screen po...
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| Vydáno v: | Psychiatry and clinical neurosciences Ročník 72; číslo 9; s. 723 - 730 |
|---|---|
| Hlavní autoři: | , , , , , |
| Médium: | Journal Article |
| Jazyk: | angličtina |
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Melbourne
John Wiley & Sons Australia, Ltd
01.09.2018
Wiley Subscription Services, Inc |
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| ISSN: | 1323-1316, 1440-1819, 1440-1819 |
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| Abstract | Aim
Due to variation in estimates of the prevalence of Internet addiction (IA) in prior research, we conducted two cross‐sectional studies over 2 years investigating the prevalence rate of IA in college students in Japan and reconsidered appropriate cut‐off points of a self‐rating scale to screen possible IA.
Methods
This study was composed of two parts: survey I in 2014 and survey II in 2016, which were conducted in the same schools with an interval of 2 years. The study questionnaire included questions about demographics and Internet use, and Young's Internet Addiction Test (IAT). Additionally, the subjects in survey II were asked about self‐reported IA.
Results
There were 1005 respondents in total with a mean age (± SD) of 18.9 ± 1.3 years. The mean IAT scores remained stable between 2014 and 2016: 45.2 ± 12.6 in survey I and 45.5 ± 13.1 in survey II (overall mean IAT score of 45.4 ± 13.0). With respect to self‐reported IA in survey II, a total of 21.6% admitted to having IA (score of 5 or 6 on a 6‐point Likert scale). We categorized these subjects as IA, and the remainder as non‐IA. The mean IAT score showed a significant difference between these two groups (57.8 ± 14.3 vs 42.1 ± 10.7, P < 0.001).
Conclusion
The severity of IA symptoms among Japanese college students has appeared stable in recent years, with mean IAT scores of over 40. Our results suggest that a screening score cut‐off of 40 on the IAT could be reconsidered and that 50 might be proposed for the cut‐off. |
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| AbstractList | Due to variation in estimates of the prevalence of Internet addiction (IA) in prior research, we conducted two cross-sectional studies over 2 years investigating the prevalence rate of IA in college students in Japan and reconsidered appropriate cut-off points of a self-rating scale to screen possible IA.AIMDue to variation in estimates of the prevalence of Internet addiction (IA) in prior research, we conducted two cross-sectional studies over 2 years investigating the prevalence rate of IA in college students in Japan and reconsidered appropriate cut-off points of a self-rating scale to screen possible IA.This study was composed of two parts: survey I in 2014 and survey II in 2016, which were conducted in the same schools with an interval of 2 years. The study questionnaire included questions about demographics and Internet use, and Young's Internet Addiction Test (IAT). Additionally, the subjects in survey II were asked about self-reported IA.METHODSThis study was composed of two parts: survey I in 2014 and survey II in 2016, which were conducted in the same schools with an interval of 2 years. The study questionnaire included questions about demographics and Internet use, and Young's Internet Addiction Test (IAT). Additionally, the subjects in survey II were asked about self-reported IA.There were 1005 respondents in total with a mean age (± SD) of 18.9 ± 1.3 years. The mean IAT scores remained stable between 2014 and 2016: 45.2 ± 12.6 in survey I and 45.5 ± 13.1 in survey II (overall mean IAT score of 45.4 ± 13.0). With respect to self-reported IA in survey II, a total of 21.6% admitted to having IA (score of 5 or 6 on a 6-point Likert scale). We categorized these subjects as IA, and the remainder as non-IA. The mean IAT score showed a significant difference between these two groups (57.8 ± 14.3 vs 42.1 ± 10.7, P < 0.001).RESULTSThere were 1005 respondents in total with a mean age (± SD) of 18.9 ± 1.3 years. The mean IAT scores remained stable between 2014 and 2016: 45.2 ± 12.6 in survey I and 45.5 ± 13.1 in survey II (overall mean IAT score of 45.4 ± 13.0). With respect to self-reported IA in survey II, a total of 21.6% admitted to having IA (score of 5 or 6 on a 6-point Likert scale). We categorized these subjects as IA, and the remainder as non-IA. The mean IAT score showed a significant difference between these two groups (57.8 ± 14.3 vs 42.1 ± 10.7, P < 0.001).The severity of IA symptoms among Japanese college students has appeared stable in recent years, with mean IAT scores of over 40. Our results suggest that a screening score cut-off of 40 on the IAT could be reconsidered and that 50 might be proposed for the cut-off.CONCLUSIONThe severity of IA symptoms among Japanese college students has appeared stable in recent years, with mean IAT scores of over 40. Our results suggest that a screening score cut-off of 40 on the IAT could be reconsidered and that 50 might be proposed for the cut-off. Due to variation in estimates of the prevalence of Internet addiction (IA) in prior research, we conducted two cross-sectional studies over 2 years investigating the prevalence rate of IA in college students in Japan and reconsidered appropriate cut-off points of a self-rating scale to screen possible IA. This study was composed of two parts: survey I in 2014 and survey II in 2016, which were conducted in the same schools with an interval of 2 years. The study questionnaire included questions about demographics and Internet use, and Young's Internet Addiction Test (IAT). Additionally, the subjects in survey II were asked about self-reported IA. There were 1005 respondents in total with a mean age (± SD) of 18.9 ± 1.3 years. The mean IAT scores remained stable between 2014 and 2016: 45.2 ± 12.6 in survey I and 45.5 ± 13.1 in survey II (overall mean IAT score of 45.4 ± 13.0). With respect to self-reported IA in survey II, a total of 21.6% admitted to having IA (score of 5 or 6 on a 6-point Likert scale). We categorized these subjects as IA, and the remainder as non-IA. The mean IAT score showed a significant difference between these two groups (57.8 ± 14.3 vs 42.1 ± 10.7, P < 0.001). The severity of IA symptoms among Japanese college students has appeared stable in recent years, with mean IAT scores of over 40. Our results suggest that a screening score cut-off of 40 on the IAT could be reconsidered and that 50 might be proposed for the cut-off. AimDue to variation in estimates of the prevalence of Internet addiction (IA) in prior research, we conducted two cross‐sectional studies over 2 years investigating the prevalence rate of IA in college students in Japan and reconsidered appropriate cut‐off points of a self‐rating scale to screen possible IA.MethodsThis study was composed of two parts: survey I in 2014 and survey II in 2016, which were conducted in the same schools with an interval of 2 years. The study questionnaire included questions about demographics and Internet use, and Young's Internet Addiction Test (IAT). Additionally, the subjects in survey II were asked about self‐reported IA.ResultsThere were 1005 respondents in total with a mean age (± SD) of 18.9 ± 1.3 years. The mean IAT scores remained stable between 2014 and 2016: 45.2 ± 12.6 in survey I and 45.5 ± 13.1 in survey II (overall mean IAT score of 45.4 ± 13.0). With respect to self‐reported IA in survey II, a total of 21.6% admitted to having IA (score of 5 or 6 on a 6‐point Likert scale). We categorized these subjects as IA, and the remainder as non‐IA. The mean IAT score showed a significant difference between these two groups (57.8 ± 14.3 vs 42.1 ± 10.7, P < 0.001).ConclusionThe severity of IA symptoms among Japanese college students has appeared stable in recent years, with mean IAT scores of over 40. Our results suggest that a screening score cut‐off of 40 on the IAT could be reconsidered and that 50 might be proposed for the cut‐off. Aim Due to variation in estimates of the prevalence of Internet addiction (IA) in prior research, we conducted two cross‐sectional studies over 2 years investigating the prevalence rate of IA in college students in Japan and reconsidered appropriate cut‐off points of a self‐rating scale to screen possible IA. Methods This study was composed of two parts: survey I in 2014 and survey II in 2016, which were conducted in the same schools with an interval of 2 years. The study questionnaire included questions about demographics and Internet use, and Young's Internet Addiction Test (IAT). Additionally, the subjects in survey II were asked about self‐reported IA. Results There were 1005 respondents in total with a mean age (± SD) of 18.9 ± 1.3 years. The mean IAT scores remained stable between 2014 and 2016: 45.2 ± 12.6 in survey I and 45.5 ± 13.1 in survey II (overall mean IAT score of 45.4 ± 13.0). With respect to self‐reported IA in survey II, a total of 21.6% admitted to having IA (score of 5 or 6 on a 6‐point Likert scale). We categorized these subjects as IA, and the remainder as non‐IA. The mean IAT score showed a significant difference between these two groups (57.8 ± 14.3 vs 42.1 ± 10.7, P < 0.001). Conclusion The severity of IA symptoms among Japanese college students has appeared stable in recent years, with mean IAT scores of over 40. Our results suggest that a screening score cut‐off of 40 on the IAT could be reconsidered and that 50 might be proposed for the cut‐off. |
| Author | Kawanishi, Chiaki Shiraishi, Masaki Tateno, Masaru Kato, Takahiro A. Teo, Alan R. Tayama, Masaya |
| Author_xml | – sequence: 1 givenname: Masaru orcidid: 0000-0002-5084-0193 surname: Tateno fullname: Tateno, Masaru email: tatema@sapmed.ac.jp organization: Sapporo Medical University, School of Medicine – sequence: 2 givenname: Alan R. surname: Teo fullname: Teo, Alan R. organization: Oregon Health & Science University – sequence: 3 givenname: Masaki surname: Shiraishi fullname: Shiraishi, Masaki organization: Sapporo Medical University, School of Medicine – sequence: 4 givenname: Masaya surname: Tayama fullname: Tayama, Masaya organization: Hokujinkai Medical Corporation – sequence: 5 givenname: Chiaki surname: Kawanishi fullname: Kawanishi, Chiaki organization: Sapporo Medical University, School of Medicine – sequence: 6 givenname: Takahiro A. orcidid: 0000-0001-5169-2930 surname: Kato fullname: Kato, Takahiro A. organization: Graduate School of Medical Sciences Kyushu University |
| BackLink | https://www.ncbi.nlm.nih.gov/pubmed/29845676$$D View this record in MEDLINE/PubMed |
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| Keywords | behavioral addiction Internet gaming disorder Internet use disorder pathological Internet use Internet addiction |
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Due to variation in estimates of the prevalence of Internet addiction (IA) in prior research, we conducted two cross‐sectional studies over 2 years... Due to variation in estimates of the prevalence of Internet addiction (IA) in prior research, we conducted two cross-sectional studies over 2 years... AimDue to variation in estimates of the prevalence of Internet addiction (IA) in prior research, we conducted two cross‐sectional studies over 2 years... |
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| SubjectTerms | Addictions Adolescent Behavior, Addictive - diagnosis Behavior, Addictive - epidemiology behavioral addiction College students Cross-Sectional Studies Demography Female Humans Internet Internet addiction Internet gaming disorder Internet use disorder Japan - epidemiology Male pathological Internet use Prevalence Psychiatric Status Rating Scales Students - psychology Universities Young Adult |
| Title | Prevalence rate of Internet addiction among Japanese college students: Two cross‐sectional studies and reconsideration of cut‐off points of Young's Internet Addiction Test in Japan |
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