Table 3.

Mini-Cog’s sensitivity and specificity at different cut-offs for detecting cognitive impairment among participants with a recorded diagnosis of dementia versus controls and a RUDAS score below or equal to 23

Mini-Cog, cut-off:	≤ 2	≤ 3
Detection of dementia cases
Sensitivity (95% CI)	83.3% (50.0–100.0)	83.3% (50.0–100.0)
Specificity (95% CI)	86.5% (73.0–97.3)	62.2% (45.9–78.4)
Detection using RUDAS score ≤ 23
Sensitivity (95% CI)	53.3% (26.7–80.0)	80.0% (60.0–100.0)
Specificity (95% CI)	92.9% (82.1.0–100.0)	75.0% (57.1–89.3)

CI = confidence interval