Table 4.
Correlation between TDAS and other tests prior to and after the intervention
| Change from week 4 to week 16 | Change from week 4 to week 28 | ||||||
|---|---|---|---|---|---|---|---|
| TDAS vs | 0.1% group | 0.5% group | 1% group | 0.1% group | 0.5% group | 1% group | |
| OSIT‐J | r | 0.259 | 0.832 | 0.030 | 0.276 | −0.190 | 0.152 |
| PSQI‐J component | |||||||
| Sleep quality | r | −0.211 | −0.075 | −0.350 | 0.237 | 0.139 | −0.149 |
| Sleep latency | r | 0.660* | −0.102 | −0.437 | 0.462 | −0.169 | 0.068 |
| Sleep duration | r | 0.536 | −0.413 | −0.562 | 0.054 | ‐ | −0.439 |
| Sleep efficiency | r | ‐ | ‐ | ‐ | 0.325 | ‐ | ‐ |
| Sleep disturbances | r | 0.618* | 0.204 | 0.301 | −0.090 | −0.100 | 0.301 |
| Sleep medication use | r | 0.310 | ‐ | 0.502 | 0.497 | ‐ | ‐ |
| Daytime dysfunction | r | −0.115 | ‐ | 0.402 | −0.122 | −0.187 | 0.401 |
| Total score | r | 0.529 | −0.119 | −0.316 | 0.318 | −0.091 | −0.091 |
*
P < 0.05.
‘–’ means that correlation analysis could not be performed because there was no change prior to or after the intervention.
r, correlation; 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.