Schizoaffective Disorder in Older adults / Seniors: Prevalence, Risk & Key Differences
| Key things to know | What the evidence shows |
|---|---|
| How common is it? | Finland ≥65 lifetime 0.11%; Dutch age ≥60 1-year 0.14% |
| Is it more common among older adults / seniors? | Lower prevalence than midlife; existing illness persists into older age |
| Are older adults / seniors at higher risk? | #N/A |
| How much higher is the risk? | ≥65 Finland 0.11%; Dutch ≥60 0.14% 1-year |
| How often can it be missed? | Very High |
| Does it show up differently among older adults / seniors? | Strong Yes |
| How might it look different? | Cognitive decline, delirium, medication effects and neurological illness enter differential; chronic functional impairment may persist |
| What commonly occurs alongside it? | Medical multimorbidity; depression; cognitive impairment; substance use |
| What can it be confused with? | Dementia; delirium; late-onset schizophrenia; mood disorder with psychosis; medication/medical psychosis |
| Common screening tool | PQ-16 — Prodromal Questionnaire → clinical psychosis/mood evaluation |
| Separate screening tool for older adults / seniors | None |
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