Validity of the Rotterdam Elderly Pain Observation Scale for institutionalised cognitively impaired Dutch adults.
A A Boerlage, L Sneep, J van Rosmalen and 1 others
PMID 33955082WHAT IT FOUND
The Rotterdam Elderly Pain Observation Scale reliably detects pain in institutionalised adults with intellectual disabilities.
A score of 3 or higher indicates likely pain, though specificity is moderate. It also appears valid for subgroups with autism or Down syndrome, despite small sample sizes in those analyses.
Key findings
01The scale showed good internal consistency and reliability, with a Cronbach's alpha of 0.81 and strong inter-observer agreement.
02A cut-off score of 3 or higher identified pain with 85% sensitivity but only 61% specificity, meaning it catches most pain but also flags some non-painful behaviours.
03The scale correlated moderately with caregiver proxy ratings (0.55) but strongly with another validated pain scale (0.73), suggesting caregiver proxy scores may be less reliable.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTsWhat it means for SLPs
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What it does not show
The study lacked a true gold standard for pain, relying instead on proxy NRS scores which showed only moderate correlation with the REPOS. Subgroup analyses for autism (n=15) and Down syndrome (n=12) were small, so conclusions about these specific populations are tentative. The principal investigator did not know which eligible residents were missed, introducing potential selection bias. Data collection was performed by local health professionals rather than pain experts, which may have affected video quality consistency.
Declared interests
The study was funded by the Foundation for the promotion of Social Pedagogical Care (Stichting SPZ). The authors declared no conflicts of interest.
The easy way to misread this
Do not assume a REPOS score of 3 or higher definitively proves pain is present. The specificity is only 61%, meaning nearly 40% of people without pain might still score above this cut-off. Always combine the score with clinical judgment and other indicators, especially since behaviours like a tense face were common even during rest.