Table 2.

Summary of subjects who completed the questionnaire and MCI Screen from the baseline to one and half years later

Number of participants	Time point
	Baseline	Half a year later	One year later	One and half years later
	473	362	344	176
Age (mean ± SD)	59.6 ± 10.1	59.9 ± 10.0	61.4 ± 10.3	62.2 ± 9.0
Male:female	175:298	142:220	132:212	76:100
Education years (mean ± SD)	14.9 ± 2.1	14.9 ± 2.1	14.7 ± 2.1	14.7 ± 2.1
MPI (mean ± SD)	69.7 ± 8.9	70.0 ± 9.2	69.8 ± 9.6	69.0 ± 8.4

Abbreviations: MCI, Mild Cognitive Impairment Screen; MPI, memory performance index; SD, standard deviation.