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Here are the key findings:* Dyscalculia often co-occurs with attention deficit/hyperactivity disorder (ADHD), internalizing spectrum of disorders (including affective disorder and generalized anxiety disorder), and externalizing spectrum of disorders (including aggressive behavior, social conduct disorder, and oppositional-defiant disorder).* The prevalence rates for comorbidity are: + ADHD: 1.19% to 5.81% + Internalizing spectrum of disorders: 0.41% to 4.70% + Externalizing spectrum of disorders: 3.55% to 42.67%The article also provides odds ratios (OR) for the comorbidity rates, which indicate the strength of association between dyscalculia and these co-occurring conditions.Overall, the study suggests that dyscalculia is often accompanied by other learning or behavioral difficulties, highlighting the importance of addressing these comorbidities in diagnosis and treatment.