Research Article

Kihito, a Traditional Japanese Kampo Medicine, Improves Cognitive Function in Alzheimer’s Disease Patients

Table 3

Changes in Japanese Mini-Mental State Examination (MMSE-J) subtest scores between acetylcholinesterase inhibitor (ChEI) alone treatment period and kihito intake period.

Cognitive DomainChEI aloneChEI + kihitoMean DifferenceSD Difference95% CIp Value
Baseline16 weeksBaseline16 weeks

Temporal orientation2.8 ± 1.872.1 ± 1.442.0 ± 1.492.8 ± 1.391.51.7150.2726 to 2.7270.0220
Spatial orientation3.3 ± 0.942.8 ± 1.313.0 ± 1.333.2 ± 1.130.71.337-0.2567 to 1.6570.1323
Memory registration3.0 ± 02.9 ± 0.312.9 ± 0.312.9 ± 0.310.10.316-0.1262 to 0.32620.3434
Attention2.4 ± 1.642.0 ± 1.942.5 ± 1.772.2 ± 1.810.12.282-1.533 to 1.7330.8929
Delayed memory recall1.3 ± 1.151.3 ± 1.051.2 ± 0.911.0 ± 1.05-0.21.229-1.079 to 0.67930.6193
Naming2.0 ± 02.0 ± 02.0 ± 02.0 ± 0no change
Phrase repetition0.8 ± 0.420.8 ± 0.420.7 ± 0.480.7 ± 0.480.00.666-0.4769 to 0.47691.00
Comprehension2.9 ± 0.313.0 ± 03.0 ± 03.0 ± 0-0.10.316-0.3262 to 0.12620.3434
Reading0.9 ± 0.311.0 ± 01.0 ± 00.9 ± 0.31-0.20.632-0.6524 to 0.25240.3434
Writing0.9 ± 0.310.7 ± 0.480.7 ± 0.480.8 ± 0.420.30.483-0.04553 to 0.64550.0811
Visuo‐constructional ability0.7 ± 0.480.6 ± 0.510.7 ± 0.480.7 ± 0.480.10.737-0.4278 to 0.62780.6783

SD: standard deviation; CI: confidence interval.
p < 0.05, two-tailed paired t-test.