A176: Meta-Analysis of the Effects of Phototherapy on Sleep Quality Across Different Populations
Abstract
Background: Sleep, a fundamental physiological need for humans, significantly
impacts an individual's physical and mental health. Phototherapy, a
non-pharmacological intervention, has been extensively researched in recent
years to improve sleep quality. This study aimed to systematically evaluate
the effects of phototherapy on sleep quality across different populations
through a meta-analysis, using Pittsburgh Sleep Quality Index as the outcome
measure, thereby providing a scientific basis for improving the population
health levels and life quality.
Method: As of March 1, 2024, this study conducted a systematic search of four
databases: Web of Science, PubMed, Embase, and CNKI. A comprehensive set of
inclusion and exclusion criteria was established for literature screening,
with statistical analysis performed using Review Manager software.
Results: From the initial retrieval of 90 articles, 12 were ultimately
included in the meta-analysis after systematic screening. The meta-analysis
results showed that phototherapy significantly improved short-term sleep
quality compared to placebo (MD = -1.39, 95% CI: -2.33 to -0.45, Z = 2.89,
I² = 94%, P = 0.004 < 0.05). However, the improvement in
sleep quality was not significant 2-4 weeks after the cessation of
phototherapy (MD = -0.48, 95% CI: -2.60 to 1.65, Z = 0.44, I² =
97%, P = 0.66 > 0.05). Phototherapy significantly improved sleep quality
in older adults (MD = -2.70, 95% CI: -3.59 to -2.29, Z = 2.70, I²
= 91%, P < 0.01), but had…
How strong is the evidence?
Evidence Hub reads this as a meta-analysis, done in people. Its evidence level is 1 of 5 (Highest · pooled evidence). Pooled evidence from several studies sits at the top of the evidence pyramid.
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