Socio-demographic characteristics and cognitive performance in oldest old subjects asking for driving license renewal

Table 1 Distribution (%) of socio-demographic characteristics of the sample within the cross-sectional analyses of the Mini Mental State Examination test scores and the Montreal Cognitive Assessment test scores

	MMSE test score (first visit)		MoCA test score (second visit)
	N	%	N	%
	3378	100.00	863	100.00
Socio-demographic characteristic
Age (years)^a
[80, 86)^b	1246	36.89	26	3.01
86	830	24.57	183	21.21
87	470	13.91	200	23.17
[88, 90)^b	515	15.25	259	30.01
[90, 99)^b	317	9.38	195	22.60
Sex
Female	366	10.83	70	8.11
Male	3012	89.17	793	91.89
Education
≤ Primary school	744	22.02	161	18.66
≤ Junior high school	690	20.43	163	18.89
≤ High school graduate	1016	30.08	278	32.21
> High school graduate	928	27.47	261	30.24

ABBREVIATIONS: MMSE Mini Mental State Examination test; MoCA Montreal Cognitive Assessment test
^aThe same age categories were chosen for the analysis of MMSE and MoCA test scores. At either visit occasion, the chosen categories allowed to: 1. guarantee the minimum frequency of 3% per cell and 2. distribute cell frequencies as much as possible across age categories for a fixed visit occasion
^bFor each age category indicated with brackets (e.g., [80, 86)), the square bracket indicated that the lower value (e.g., 80) was included in the interval, the curved bracket indicated that the upper value (e.g., 86) was excluded from the interval

ISSN: 1471-2318