Behaviour management problems as predictors of psychotropic medication and use of psychiatric services in adults with autism.

Tsakanikos et al. (2007) looked at 118 adults who had both autism and intellectual disability. They asked which problem behaviors sent these adults to psychiatric services or antipsychotic drugs. The team pulled medical records and scored each person for aggression, overactivity, self-injury, and repetitive behaviors.

They then ran stats to see which behaviors predicted hospital stays, outpatient visits, or new prescriptions.

Two behaviors stood out. Adults who showed physical aggression or high overactivity were far more likely to receive antipsychotics. Just having an autism diagnosis, even without severe behavior, raised the odds of an inpatient admission.

Self-injury or repetitive actions did not drive service use on their own.

Matson et al. (2008) followed up the next year and gave the same adults atypical antipsychotics. Aggression counts dropped, but self-injury stayed flat and everyone gained weight. The drug response matches the target paper's red-flag list.

Nickerson et al. (2015) tracked the same clinical pathway for six months. Despite high-dose polypharmacy, aggression only shrank a little. Together the three papers show: aggression gets the prescription, yet meds alone rarely solve it.

Diemer et al. (2023) widened the lens to ten years. Two-thirds of autistic people who were aggressive at baseline had stopped by adulthood. The 2007 snapshot feels permanent, but the later data say plan for remission.

When you see an adult with autism and ID hit, kick, or pace nonstop, expect a referral for antipsychotics. Use that moment to push for a full behavior plan, not just a pill check. Track weight, ask about remission goals, and keep teaching replacement skills. The meds may calm the room, but your program can aim for the long-term drop-off that natural remission data promise.