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. 2018 Jan 27;62(2):195–205. doi: 10.3164/jcbn.17-100

Table 6A.

Number of answers of subjects aged <55 years in cognitive tests

Item Numerical item Group Baseline
Week 4
Week 8
p (Inter-group)
Mean SD Mean SD Mean SD
Word memory test Immediate recall Measured value P 4.7 1.4 4.6 1.1 5.1 1.1
A 4.6 0.7 5.0 0.9 5.5* 1.1

Amount of change P –0.1 1.8 0.4 2.1 0.650
A 0.4 1.0 0.9 1.1

Immediate recall + cued recall Measured value P 5.9 1.0 5.7 0.8 6.3 1.0
A 5.6 0.8 6.5* 0.7 6.5* 0.7

Amount of change P –0.1 1.2 0.4 1.4 0.085
A 0.9 1.1 0.9 1.1

Recall after 5 min Measured value P 4.5 1.3 4.1 1.4 5.4* 1.2
A 4.4 1.4 5.5* 0.9 5.5* 1.1

Amount of change P –0.4 1.8 0.9 1.4 0.027
A 1.2 1.5 1.2 1.3

Recall after 5 min + cued recall Measured value P 5.4 1.2 5.0 1.0 6.0 1.2
A 5.1 0.9 6.0 1.1 6.2** 0.8

Amount of change P –0.4 1.6 0.6 1.5 0.074
A 0.9 1.4 1.1 1.0

Verbal fluency test Names of vegetables Measured value P 17.4 3.5 17.1 3.0 18 3.4
A 15.9 2.2 17.7* 2.8 17.6** 2.8

Amount of change P –0.2 2.8 0.6 3.0 0.11
A 1.8 2.1 1.7 1.7

Words that begin with “a” Measured value P 13.7 3.7 13.2 3.6 15.6 5.4
A 14.1 3.2 14.4 4.8 17.5** 3.2

Amount of change P –0.5 3.0 1.9 3.9 0.607
A 0.3 4.3 3.4 2.9

Animal words Measured value P 19.6 3.6 20.5* 3.3 21.1* 3.7
A 19.5 4.5 20.4 4.9 22.5* 3.8

Amount of change P 0.9 1.4 1.6 2.2 0.437
A 0.8 4.8 2.9 3.3

Stroop test Step 1 Measured value P 55.6 6.0 58.6* 6.0 62.7** 6.5
A 60.6 5.4 62.6 5.8 67.6** 4.8

Amount of change P 2.9 4.7 7.1 3.5 0.836
A 2.0 5.1 7.0 4.2

Step 2 Measured value P 48.6 5.6 50.7* 6.7 53.9** 5.8
A 51 4.6 52 4.3 54.6** 4.9

Amount of change P 2.1 3.3 5.4 3.3 0.510
A 1.0 3.9 3.6 2.9

Step 3 Measured value P 38.9 4.4 41.0** 5.2 42.0** 5.8
A 40.7 3.0 41.5 4.7 44.3* 5.0

Amount of change P 2.1 2.6 3.1 3.0 0.366
A 0.8 3.7 3.5 4.0

Step 4 Measured value P 33.7 3.6 35.5 7.1 35.3 10.1
A 33.7 4.1 36.4 4.7 37.7** 5.6

Amount of change P 1.8 7.3 1.6 8.8 0.702
A 2.6 5.1 4.0 3.4

Group P: n = 14, group A: n = 11. Intra-group comparison at baseline *p<0.05 and **p<0.01 (1-sample t test). Inter-group comparison with group P (two-way-repeated measures of ANOVA)