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. 2020 Jul 27;8(7):e19585. doi: 10.2196/19585

Table 1.

Demographic characteristics of the participants (N=11).

Group and participants Sex Age (years; mean 75.7, SD 3.93) Education (years; mean 9.9, SD 3.36) K-MMSE scorea (points; mean 28.2,
SD 1.26)
Smart device usage (years; mean 3.5, SD 2.31) Health
app use
High-potential group (n=6)

No. 1 F 77 12 27 3 No

No. 2 F 73 12 28 9 No

No. 3 F 83 9 24 5 No

No. 4 F 71 16 29 2 Yes

No. 5 M 75 16 28 8 Yes

No. 6 F 67 12 30 4 No

Mean (SD) N/Ab 74.3 (5.47) 12.8 (3.00) 27.7 (1.92) 5.2 (3.05) N/A
Low-potential group (n=5)

No. 7 F 78 6 29 0 N/A

No. 8 F 82 6 29 4 No

No. 9 F 71 9 29 0 N/A

No. 10 F 80 6 30 0 N/A

No. 11 F 76 5 27 3 No

Mean (SD) N/A 77.4 (4.22) 6.4 (1.52) 28.8 (1.10) 1.4 (1.95) N/A

aK-MMSE: Korean Mini-Mental State Examination, maximum score=30 points.

bN/A: not applicable.