Identifying bipolar disorders in individuals with intellectual disability.
DSM-IV criteria plus a short list of tell-tale behaviors can separate bipolar disorder from other psychiatric conditions in adults with intellectual disability.
01Research in Context
What this study did
The team looked at adults with intellectual disability who already had a bipolar diagnosis. They checked how many DSM-IV symptoms each person showed. They also noted special behavior patterns that showed up only in the bipolar group.
The goal was to see if regular DSM-IV rules, plus these extra behaviors, could tell bipolar apart from other mental-health labels in people with ID.
What they found
Adults with ID plus bipolar had more DSM-IV checklist items than other psychiatric groups. They also showed a unique mix of behaviors. These two clues together made the bipolar group stand out clearly.
How this fits with other research
Dewsbury (2003) looked at the same year and same people, but asked a darker question: can we even spot depression in ID? That review said "no gold tool exists." The current paper answers back: "Yes, for bipolar we can—if we add behavior profiles to DSM-IV."
Cerutti et al. (2004) stretched the idea to India. They found 82% match between ICD-10 and a local screen. Both studies say standard criteria work across cultures, but the India paper widens the lens beyond just bipolar.
Hermans et al. (2010) rounded up every depression screen for ID and still came up short. Their gap list makes the current win—finding clear bipolar signs—feel even bigger.
Why it matters
If you assess adults with ID, you now have a roadmap: count DSM-IV symptoms and watch for high-energy, fast-cycling behaviors. When both boxes tick, bipolar is far more likely than other labels. This cuts misdiagnosis and gets the right meds, sleep plan, and behavioral supports started faster.
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02At a glance
03Original abstract
OBJECTIVE: The aim of the present study was to characterize adults with intellectual disability (ID) and concomitant clinical diagnoses of bipolar disorder (BPD), and determine whether DSM-IV criteria would distinguish individuals with BPD from patients with other psychiatric diagnoses. METHODS: A retrospective chart review was done of a convenience sample of adult patients seen over a 3-year period in a specialty clinic for adults with ID and psychiatric disorders. The DSM-IV criteria were used to differentiate individuals with clinical symptoms of BPD from groups of patients with other mood or thought disorders with behavioural symptoms which frequently overlap those of BPD. Behavioural symptoms were also catalogued and used to distinguish the diagnostic groups. RESULTS: Subjects with clinical symptoms of BPD had significantly more DSM-IV mood-related and non-mood-related symptoms, as well as functional impairments, compared to individuals with major depression, depression with psychosis or schizophrenia/psychosis NOS (not otherwise specified). Likewise, behavioural profiles of the BPD group of patients differed significantly from patients in the other three groups. CONCLUSIONS: Bipolar disorder can be readily recognized and distinguished from other behavioural and psychiatric diagnoses in individuals with ID, and DSM-IV criteria can be useful in the diagnosis of BPD.
Journal of intellectual disability research : JIDR, 2003 · doi:10.1046/j.1365-2788.2003.00458.x