Comparison between TDS and IAT categories
| IAT categories | Normal user | Mild user | Moderate user | Excessive user | P values |
| TDS | 12 (9–15) | 13 (11–17) | 16 (13–19) | 22 (16–26) | <0.0001 |
| Total IAT score | 17 (10–25) | 40 (35–45) | 59 (54–65) | 85 (83–90) | <0.0001 |
IAT, Internet Addiction Test; TDS, Total Difficulty Score.