Work

The Effects of Light Therapy on Sleep, Agitation and Depression in People With Dementia: A Systematic Review and Meta-analysis of Randomized Controlled Trials

Year: 2023

Type: review

Study designs: Systematic Review, Meta-Analysis

Abstract: Objective To evaluate the effects of light therapy on the alleviation of sleep disturbances, agitation and depression in people with dementia. Methods A search was performed in PubMed, Medline, SCOPUS, Web of Science, EMBASE, CINAHL, Cochrane Library, for studies published between 2000 and 2021. Results A total of 4315 articles were screened. Sixteen articles were eligible for this review and 11 randomized controlled studies were included in the meta-analysis. Light therapy had a significant effect on reducing the number of awakenings in sleep ( n = 4; 95% CI = −.56, −.05; I 2 = 0%; SMD = −.31) but was not significant in reducing the wake after sleep onset ( n = 3; 95% CI = −.14, .59; I 2 = 0%; SMD = .23), agitation ( n = 4; 95% CI = −1.02, .45; I 2 = 87%; SMD = −.28) and depression ( n = 6; 95% CI = −.80, .40, I 2 = 85%; SMD = −.20). Conclusion Light therapy appeared to be more effective in terms of alleviating sleep disturbances, rather than reducing agitation and depression, but its long-term effects remain unclear.

Source: American Journal of Alzheimer s Disease & Other Dementias®

DOI: 10.1177/15333175231160682

Authors: Kenneth NK Fong, Xiangyang Ge, KH Ting, Minchen Wei, Hilda Cheung

Institution: Hong Kong Polytechnic University

Language: English

Topic: Dementia and Cognitive Impairment Research

Subfield: Psychiatry and Mental health

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $2,100