The authors of the present study (1) estimate the prevalence of Internet Gaming Disorder (IGD) among 12– to 25-year-olds in Germany. The authors’ results confirm the clinical impression that IGD prevalence is rising, even though diagnostic criteria such as those found in the DSM-5 are not present in the German ICD-10-based system. Despite the methodological limitations mentioned by the authors, they present valuable results.

I would like to add that data on IGD and Internet Addiction Disorder (IAD) are available for similar populations, particularly for Asia (for a summary, see [2]). The available studies mainly originate from China, South Korea, India, and Sri Lanka, with prevalences between 1.6% and 20.3% for IAD, although not all probands mainly play. The average IAD prevalence of 6% reported in a meta-analysis of 31 countries (3) is comparable to the 5.7% found in the present study (1), taking into account that IAD represents “mixed consumption” (gaming and other Internet use).

What are the clinical implications arising from the primary analyses of the present study (1)? The target group for prevention services can be better defined and more specific offers can be developed. The awareness of the need for early interventions in affected persons’ social environment can be promoted, and possible comorbidities (e. g. emotional disorders) should be treated adequately.

DOI: 10.3238/arztebl.2017.0720a

Prof. Dr. med. Martin H. Maurer

Buchenberg

martin.maurer@alumni.uni-heidelberg.de

1.
Wartberg L, Kriston L, Thomasius R: The prevalence and psychosocial correlates of Internet gaming disorder—analysis in a nationally representative sample of 12- to 25-year-olds. Dtsch Arztebl Int 2017; 114: 419–24 VOLLTEXT
2.
Ginige P: Internet addiction disorder. In: Maurer MH (ed.): Child and adolescent mental health. Rijeka: Intech 2017; 141–63 CrossRef
3.
Cheng C1, Li AY: Internet addiction prevalence and quality of (real) life:
a meta-analysis of 31 nations across seven world regions. Cyberpsychol Behav Soc Netw 2014; 12: 755–60.
1.Wartberg L, Kriston L, Thomasius R: The prevalence and psychosocial correlates of Internet gaming disorder—analysis in a nationally representative sample of 12- to 25-year-olds. Dtsch Arztebl Int 2017; 114: 419–24 VOLLTEXT
2. Ginige P: Internet addiction disorder. In: Maurer MH (ed.): Child and adolescent mental health. Rijeka: Intech 2017; 141–63 CrossRef
3. Cheng C1, Li AY: Internet addiction prevalence and quality of (real) life:
a meta-analysis of 31 nations across seven world regions. Cyberpsychol Behav Soc Netw 2014; 12: 755–60.

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