Association between Problematic Internet and Mobile Phone Use, autistic traits, and psychological distress among adults: A cross-sectional survey

PLOS Ment Health. 2026 Jun 2;3(6):e0000524. doi: 10.1371/journal.pmen.0000524. eCollection 2026.

ABSTRACT

Problematic Internet Use (PIU) and Problematic Mobile Phone Use (PMPU) are emerging public health concerns associated with various mental health conditions, including autistic traits. However, PIU and PMPU remain poorly understood, and the role of psychological distress as a contributing factor has not been fully clarified. This study examined frequency and associations of autistic traits, PIU and PMPU, and substance use in adults, accounting for psychological distress. An online cross-sectional survey was conducted among 420 Italian adults aged 18 – 65, to assess autistic traits (Autism Spectrum Quotient, AQ), PIU (Uso e Abuso di Internet-2, UADI-2), PMPU (Mobile Phone Problematic Use Scale for Adults, MPPUS), substance use (Alcohol, Smoking and Substance Involvement Screening Test, ASSIST), and psychological distress (Kessler Psychological Distress Scale, K10). Correlation analyses, MANCOVA and Multivariate Multiple Regression (MMR) were performed to examine associations between variables, controlling for psychological distress. Young adults (18-24 years) showed higher levels of Internet (M = 66.36, SD = 13.56, 95% CI [63.87, 68.85]) and mobile phone use (M = 61.41, SD = 14.25, 95% CI [58.92, 63.9]). Autistic traits correlated positively with both PIU and PMPU, while psychological distress was positively associated with all outcomes, including substance use in younger participants. MANCOVA indicated significant effects of autistic traits and psychological distress on outcomes. MMR showed that higher autistic traits predicted higher PIU and PMPU, while psychological distress additionally predicted substance use. Autistic traits and psychological distress were significantly associated with PIU and PMPU, with psychological distress showing stronger associations. PIU and PMPU may be specifically linked to autistic traits, whereas substance use may be more related to psychological distress, suggesting different pathways. Further efforts should prioritize interventions targeting distress and emotion-regulation skills, particularly among young adults and individuals exhibiting PIU and PMPU.

PMID:42228684 | DOI:10.1371/journal.pmen.0000524