PMC

Changes of online game usage and mood at baseline, eight weeks, and 12 weeks. YIAS: Young’s Internet Addiction Scale, BDI: Beck Depression Inventory.

Response rates (BDI and YIAS). (A) Response rates, Beck Depression Inventory Scale (BDI), bupropion group (56%) vs. placebo group (48%), χ² = 34.7, p < 0.01; Young Internet Addiction Scale (YIAS), bupropion group (48%) vs. placebo group (12%), χ² = 30.9, p < 0.01. (B) The change of YIAS scores between responders and non-responders; responders: patients with post-treatment BDI scores of less than 30% of baseline scores, F = 9.96, p < 0.01.