OBJECTIVE: The study explores gender differences in prevalence, risk factors, and clinical aspects of Internet addiction among Iranian youth, highlighting cultural and societal influences.

METHODS: A nationwide sample of 3149 individuals aged 18 to 24 was categorized into two groups: those with Internet addiction (n = 1040) and those without (n = 2109). Participants completed the Childhood Trauma Questionnaire-28, Dissociative Experiences Scale (DES), Difficulties in Emotion Regulation Scale (DERS), and Internet Addiction Test (IAT). Data analyses were conducted using SPSS software version 26, with a significance level set at <0.05.

RESULTS: Overall prevalence of Internet addiction was found to be 33 %, with a higher incidence in males (63.3 %) compared to females (36.7 %) (χ2 = 13.28, p = 0.001). In men, the severity of Internet addiction was significantly linked to emotional abuse (β = 0.20, p˂0.001), DES (β = 0.39, p˂0.001), and DERS (β = 0.16, p˂0.001) (F(3, 654) = 89.85, p˂0.001, R2 = 0.29); while in women, it was associated with emotional abuse (β = 0.18, p˂0.001) and dissociative experiences (β = 0.16, p˂0.001) (F(2, 379) = 13.70, p˂0.001, R2 = 0.06). The DES partially mediated the relationship between emotional abuse and IAT scores in both genders, whereas DERS only did so in males.