The effects of an expanded cognitive stimulation therapy model on the improvement of cognitive ability of elderly with mild stage Dementia living in a community — a randomized waitlist controlled trial

Daniel YOUNG*, Petrus Y N NG, Timothy Kwok, Florence Ho, Daphne Cheng, Vivan Mak, Andrew Lau

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Objective: This research study aims to evaluate the effectiveness of an expanded cognitive stimulation therapy (CST) model that combines a CST group and tai chi on improving the cognitive ability of community-dwelling Chinese elderly with mild stage dementia (EwMD). Method: A randomized waitlist controlled trial design was adopted in this study. The treatment group participated in a structured CST group followed by tai chi twice a week, with a total of 14 sessions throughout the study period. The waitlist control group received treatment as usual at the initial stage and expanded CST model at a later stage. The Chinese Mattis Dementia Rating Scale (DRS) and the Chinese Mini Mental State Examination (MMSE) were used to assess the cognitive ability of EwMD in the pre- and post- treatment periods. Results: At baseline, the treatment group (n = 51) and control group (n = 50) did not differ significantly in any demographic or clinical variables. Overall, the participants had a mean baseline MMSE score of 20.67 (SD = 2.30). The 2 × 2 repeated measures ANCOVA demonstrated that the treatment group was significantly more effective than the control group in improving the MMSE score (F = 12.31, p<.01) with a moderate effect size (partial eta square =.11) after controlling for group difference in age, gender, education, and having a diagnosis of dementia. Conclusion: The present study demonstrates the effectiveness of the expanded CST model on the improvement of cognitive ability of community-dwelling EwMD. More research is needed to further investigate this intervention model across cultures and societies.

Original languageEnglish
Pages (from-to)855-862
Number of pages8
JournalAging and Mental Health
Volume23
Issue number7
DOIs
Publication statusPublished - 3 Jul 2019

Scopus Subject Areas

  • Psychiatric Mental Health
  • Gerontology
  • Geriatrics and Gerontology
  • Psychiatry and Mental health

User-Defined Keywords

  • Cognitive functioning
  • cognitive stimulation therapy
  • Dementia
  • randomized waitlist controlled trial
  • Tai chi

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