TABLE 3.

Functional tasks scores (cumulative point score)

Task	MCI groups (n = 21)	HC groups (n = 14)	P
Phone tasks
Search	0.33 ± 0.80	0.57 ± 0.76	.916
Write	0.10 ± 0.30	0.36 ± 0.50	.971
Call	0.24 ± 0.54	0.07 ± 0.27	.166
Overall	0.67 ± 0.97	1.00 ± 0.88	.894
Calculation tasks
Identify and add b	1.56 ± 1.26	1.17 ± 0.83	.230
Coinbox	0.24 ± 0.62	0.29 ± 0.61	.687
Subtract	0.43 ± 0.68	0.14 ± 0.53	.052
Add c	0.70 ± 1.13	0.23 ± 0.44	.167
Overall	2.88 ± 2.85	1.75 ± 1.42	.160

^aDenotes a significant P value. Unpaired Welch two‐sample t test (one‐sided) was used to compare data that were normally distributed, otherwise Wilcoxon rank‐sum test with continuity correction was used.

^b‐5 MCI and 2 HC participants did not successfully complete this sub task.

^c‐1 MCI and 1 HC participants did not successfully complete this sub task.

Data were mean ± SD.