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

Table 1

Demographic and clinical characteristics of the total study sample and of the two original samples.

	Total	Madrid	Granada	𝑃 value
𝑛	307	165	142
Female gender	221 (72.0)	118 (71.5)	103 (72.5)	0.90
Age, years	72.0±10.1	71.9±8.9	72.1±11.4	0.84
Educational level
<Primary	156 (50.8)	84 (50.9)	72 (50.7)	1.00
≥Primary	151 (49.2)	81 (49.1)	70 (49.3)
Cognitive diagnosis
NC	131 (42.7)	75 (45.5)	56 (39.4)	≤0.001
MCI	112 (36.5)	75 (45.5)	37 (26.1)
DEM	64 (20.8)	15 (9.1)	49 (34.5)
Mini-Cog	2.0±1.7	2.4±1.7	1.5±1.5	≤0.001
MMS	21.3±5.2	22.3±4.5	19.9±5.7	≤0.001
CDT	4.5±2.5	5.0±2.0	4.0±2.8	≤0.001
MMS + CDT	25.7±7.2	27.3±6.0	23.9±8.1	≤0.001

Data represent number of individuals (%) or mean ± SD. MMS: Mini-Mental State; CDT: Clock Drawing Test; DEM: dementia; NC: normal cognition; MCI: mild cognitive impairment.