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Few data exist about the long-term prognosis of childhood attention-deficit/hyperactivity disorder (ADHD). Researchers prospectively examined long-term outcomes in 232 adults (mean age, 27 years; 28% women) who had childhood ADHD (77% received stimulants) and 355 matched non-ADHD controls from the same birth cohort in Minnesota. The Mini International Neuropsychiatric Interview was used to assess adult ADHD symptoms and other psychiatric comorbidities.
The overall standardized mortality ratio (SMR) and the cause-specific SMR for accidents did not differ between ADHD cases and controls. However, cases had a significantly higher SMR for suicide (4.83). Only 87 cases (38%) did not meet criteria for ADHD or other psychiatric disorders in adultho…