SQiD — Single Question in Delirium

2010

A single question to a friend or relative — 'Do you think [name] has been more confused lately?' — as a simple case-finding prompt.

Informant / caregiver-basedUltra-brief bedside screenSingle validation study

80%

Sensitivity*

71%

Specificity*

n=21

Sample

Full nameSingle Question in Delirium

Also known asSQiD

PurposeInformant / caregiver-based, Ultra-brief bedside screen

PopulationAdult

SettingPalliative care, General / acute hospital

Items1

Administration<1 min

EvidenceSingle validation study

Reference typeOriginal validation study

Reference standardPsychiatrist interview

Validation samplen = 21

Cut-off / scoringInformant 'more confused lately?'

Strengths＋ Single question; leverages family knowledge

Limitations− Very small original sample

ReferenceSands MB, Dantoc BP, Hartshorn A, Ryan CJ, Lujic S. Single Question in Delirium (SQiD): testing its efficacy against psychiatrist interview, the Confusion Assessment Method and the Memorial Delirium Assessment Scale. Palliat Med. 2010;24(6):561-5. PMID 20837733

Download RIS Download BibTeX DOI ↗ Original validation study ↗Official source ↗

* Where shown, sensitivity/specificity are from the cited validation cohort and are not pooled estimates. Citation metadata was checked against PubMed or the publisher DOI record; a checked reference does not imply validation, study quality or endorsement. See the Methodology.