Utility of the Mini-Cog for Detection of Cognitive Impairment in Primary Care: Data from Two Spanish Studies

Table 3

Utility of the Mini-Cog for the detection of CI (MCI or dementia).

Cutoff	Sn	Sp	LR+	DA	𝜅
≤0	0.53 (0.45–0.60)	0.94 (0.88–0.97)	8.6 (4.4–17.2)	0.70	0.43±0.04
≤1	0.60 (0.53–0.67)	0.90 (0.84–0.95)	6.1 (3.6–10.3)	0.73	0.48±0.05
≤2	0.78 (0.71–0.84)	0.59 (0.51–0.68)	1.9 (1.5–2.4)	0.70	0.38±0.05
≤3	0.88 (0.82–0.92)	0.38 (0.30–0.47)	1.4 (1.2–1.6)	0.67	0.28±0.05
≤4	0.96 (0.92–0.98)	0.14 (0.08–0.21)	1.1 (1.0–1.2)	0.61	0.11±0.04
≤5	1.00 (0.98–1.00)	0.00 (0.00–0.03)	1.0 (1.0–1.0)	0.67	0.00±0.00

DA: diagnostic accuracy (proportion of correct diagnoses); 𝜅: kappa index; LR+: positive likelihood ratio; Sn: sensibility; Sp: specificity.