Kara, TayfunKocaman, OrhanAvsar, Pinar AydoganKuru, Tacettin2026-01-242026-01-2420251728-05831728-0591https://doi.org/10.2989/17280583.2025.2452519https://hdl.handle.net/20.500.12868/5339Background: We sought to examine the relationship between smartphone addiction and coping skills in adolescents diagnosed with attention-deficit/hyperactivity disorder (ADHD), together with potential predictive factors. Method: Two hundred seventy-five participants (144 diagnosed with ADHD and 131 healthy controls) were included in the study. All participants were evaluated via DSM-5-based psychiatric examinations. Smartphone addiction levels were assessed using the Smartphone Addiction Scale-Short Version (SAS-SV), and coping skills were evaluated using the Coping Scale for Children and Youth (CSCY). The scores were then subjected to statistical comparisons. Results: Higher SAS-SV scores were observed in the adolescents with ADHD compared to the control group (p = 0.047). Significant positive correlations were found between cognitive avoidance (CAV) (p < 0.001, r = 0.377) and behavioural avoidance (BAV) (p < 0.001, r = 0.297) in the ADHD group. In contrast, significant negative correlations were found with Problem-solving (PROB) (p = 0.001, r =-0.281) and assistance-seeking (ASK) (p = 0.013, r = -0.206). Following model analysis, CAV emerged as a significant positive predictor of SAS-SV scores, and PROB as a significant negative predictor (p =0.005 and p = 0.016, respectively). Conclusions: The decrease in coping skills in adolescents diagnosed with ADHD was associated with an increase in smartphone addiction. Additionally, increased cognitive avoidance and low problem-solving skills also predicted addiction.eninfo:eu-repo/semantics/closedAccessadolescenceattention-deficit/hyperactivity disordercopingsmartphone addictionArticle10.2989/17280583.2025.2452519362299307399628882-s2.0-85218190406Q4WOS:001425053800001Q4