Comparing Short Cognitive Screening Instruments in an Outreach Memory Clinic in Primary Care

Area of Science:

• Neurology
• Geriatrics
• Primary Care Medicine

Background:

• Limited research exists on extending hospital-based memory clinic services into primary care.
• Such outreach models could significantly enhance access to specialized mental healthcare for cognitive conditions.

Purpose of the Study:

• To evaluate the reliability and validity of a pilot cognitive screening pathway in Irish general practice (GP).
• To compare the diagnostic accuracy of the Quick Mild Cognitive Impairment (Qmci) screen against established tools like MoCA and GPCOG.

Main Methods:

• A physician-run memory clinic conducted screenings and clinical diagnoses in two primary care settings.
• Consecutive patients with memory complaints were assessed using Qmci, MoCA, and GPCOG.
• Inter-rater reliability (IRR) and diagnostic validity (AUC) were calculated, with secondary care follow-up confirming diagnoses.

Main Results:

• The Qmci screen demonstrated excellent IRR (r = 0.89) between GP and clinic settings.
• Qmci showed higher accuracy (AUC=0.95) than GPCOG (AUC=0.80) in identifying cognitive impairment (p=0.008).
• Qmci and MoCA had comparable accuracy (AUC=0.95 vs 0.91, p=0.117) but Qmci was significantly faster (p<0.001).

Conclusions:

• The Qmci screen is a reliable and valid tool for cognitive screening in primary care.
• Its efficiency and accuracy suggest it is a useful instrument for establishing outreach memory clinics.
• Further definitive studies are planned to explore the broader benefits and challenges of this model.