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Table 2 Results of subgroup effect size analysis of internet addiction patients for each of the psychiatric comorbidity

From: The association between internet addiction and psychiatric co-morbidity: a meta-analysis

Subgroups No. of studies Pooled prevalence (%) 95% CI P value in between-group comparison
1. Attention deficit and hyperactivity     
Young adults (19-39 years) 2 23.7 17.0-32.0 <0.001
Adolescents (10-18 years) 2 20.3 16.3-24.9  
2. Alcohol abuse
Middle-aged adults and elderly (40-76 years) 1 6.1 3.6-10.2 <0.001
Young adults (19-39 years) 1 13.0 9.3-17.8  
Adolescents (10-18 years) 1 25.1 20.9-29.8  
3. Anxiety
Middle-aged adults and elderly (40-76 years) 1 16.5 12.1-22.1 <0.001
Young adults (19-39 years) 2 30.9 8.6-68.1  
Adolescents (10-18 years) 1 20.3 15.9-25.6  
4. Depression
Middle-aged adults and elderly (40-76 years) 1 35.8 29.7-42.5 <0.001
Young adults (19-39 years) 3 28.3 18.2-41.3  
Adolescents (10-18 years) 1 14.3 10.5-19.2