Researchers report that people diagnosed with attention deficit hyperactivity disorder (ADHD) after age 18 tend to show a “milder” profile than those diagnosed before 17, based on health and genetic risk measures. The findings suggest later diagnosis is linked with fewer co-occurring conditions.
According to the studies described by outlets, participants diagnosed in adulthood have fewer additional health problems and a lower genetic risk of developing ADHD compared with those whose diagnosis occurs during childhood or adolescence. Both reports frame the results as evidence of differences between early- and later-diagnosed ADHD.
The coverage is broadly aligned in its interpretation, though it uses similar phrasing and does not provide extensive methodological detail in the excerpts. Neither outlet highlights major disagreements, instead focusing on the same contrast between under-17 and 18-plus diagnosis groups—co-morbid health burden on one side, and estimated genetic liability on the other.
