Table 1.
Ten research topics classified by Latent Dirichlet allocation in WOS database
| Rank by the highest volume last 5 years | Research topics | N | Percent |
| Topic 1 | Smartphone addiction | 107 | 4.70% |
| Topic 2 | Internet addiction and mental health problems | 297 | 13.05% |
| Topic 3 | Internet addiction and depression among University Students | 385 | 17.00% |
| Topic 4 | Prevalence and risk factors of problematic Internet use among adolescents | 215 | 9.45% |
| Topic 5 | Social media and social network games | 178 | 7.82% |
| Topic 6 | Validity and Reliability Study of the Internet Addiction Test | 158 | 6.55% |
| Topic 7 | Brain Functional Network in Internet Addiction or Gaming disorder | 173 | 7.60% |
| Topic 8 | Internet pornography addiction and its consequences | 255 | 11.20% |
| Topic 9 | Treatment Interventions for Internet Addiction | 92 | 4.13% |
| Topic 10 | Gaming and Gambling disorder | 167 | 7.34% |