Table 3.

Change in the TDAS, OSIT‐J and PSQI‐J scores from pre‐intervention

	0.1% group	0.5% group	1% group	P‐value
TDAS
Week 16–Week 4	1.7 (2.0)	1.5 (1.1)	1.1 (0.9)	0.962
Week 28–Week 4	0.2 (2.5)	2.3 (1.9)	1.6 (1.4)	0.727
OSIT‐J
Week 16–Week 4	−0.3 (0.5)	−0.5 (0.4)	−0.5 (0.5)	0.906
Week 28–Week 4	−0.4 (0.5)	−1.5 (0.5)	−0.7 (0.5)	0.353
PSQI‐J
Week 16–Week 4	0 (0.4)	0.2 (0.3)	0.1 (0.3)	0.874
Week 28–Week 4	−0.2 (0.5)	−0.4 (0.2)	0.1 (0.3)	0.712

Data presented as mean (standard error).

TDAS, Touch Panel‐type Dementia Assessment Scale; OSIT‐J, Odour Stick Identification Test for Japanese; PSOI‐J, Japanese version of the Pittsburgh Sleep Quality Index.