Early-onset psychosis in youth with intellectual disability.
Most youth with ID who get an early psychosis label lose it after a careful second look.
01Research in Context
What this study did
Doctors looked at 21 kids with intellectual disability who were told they had early psychosis.
They gave each child a full second check-up.
The team watched how the kids did over time.
What they found
Most kids lost the psychosis label after the new review.
Children with moderate or severe ID had the worst long-term results.
Only a few truly had psychotic illness.
How this fits with other research
Dell'Armo et al. (2024) pooled 25 studies and found that diagnostic overshadowing is not as common as we think.
That review warns us not to swing the pendulum too far and blame every symptom on ID.
Kirby et al. (2024) followed adults with mild ID and saw high psychiatric need, so accurate youth labels still matter for life-long planning.
Holburn (2001) reminds us to rule out hidden hearing or vision loss first; sensory pain can look like psychosis.
Why it matters
Before you write psychosis-NOS in an ID case, pause and re-test. Use a full developmental lens, check senses, and track real-world data. A wrong tag can lead to heavy meds and low expectations. A fresh look often shows the behavior is not psychosis at all, especially when ID is moderate or severe.
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02At a glance
03Original abstract
BACKGROUND: Accurate diagnosis of psychotic disorders may be very difficult in youth with intellectual disabilities. METHOD: The authors reviewed the assessment, treatment and follow-up of 21 youths with ID referred because of early onset of psychotic symptoms. RESULTS: Just over one half of the patients had a diagnosis of schizophrenia or schizoaffective disorder. One third of the sample carried the diagnosis of psychosis NOS (not otherwise specified). After careful review, five out of seven of these psychotic-like cases were assessed as non-psychotic. Patients with Psychosis NOS associated with moderate or severe ID had the worst outcome. CONCLUSION: This clinical review provides important information about the identification, diagnosis and outcome of psychotic symptoms in youth with low verbal abilities.
Journal of intellectual disability research : JIDR, 2004 · doi:10.1111/j.1365-2788.2004.00622.x