SynthesisSleep & breathing = Schlaf & Atmung2024
The effect of light therapy on insomnia: A systematic review and meta-analysis.
Synthesis in Sleep & breathing = Schlaf & Atmung, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
3 citing papers in PubMed.
- Prevalence and risk factors of sleep disturbances before and after spinal surgeries: a systematic review and meta-analysis.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026Article
- Effects of Phototherapy on Sleep, Fatigue and Quality of Life in Dermatology Patients: A Pilot Study.Sisli Etfal Hastanesi tip bulteni · 2026Article
- Physical factor therapies for insomnia: a narrative review of mechanisms, clinical evidence, and phenotype-guided applications.Frontiers in psychiatry · 2026Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors.
Funding
Abstract
purposeLight is a crucial factor influencing sleep arousal patterns. This meta-analysis investigates the efficacy of light therapy (LT) for insomnia treatment.
methodsFive electronic databases were independently searched by two reviewers until August 2024. The literature screening focused specifically on populations with insomnia complaints treated by LT. Weighted Mean Difference (WMD) and 95% Confidence Interval (CI) were used as statistical tools, while the Cochrane Risk of Bias tool version 2 (RoB 2) was employed to assess the quality of evidence. A total of 10 randomized controlled trials (RCTs) were analyzed.
resultsThe results demonstrated that LT showed statistically significant improvements in subjective sleep quality, as evidenced by a reduction in Pittsburgh sleep quality scale (PSQI) scores by -2.89 (95% CI = -4.80 to -0.97) and Insomnia severity index (ISI) scores by -2.16 (95% CI = -4.23 to -0.08) post-intervention. Additionally, actigraphy revealed a statistically significant increase in total sleep time (TST) by 16.78 min (95% CI = 0.67 to 32.89) and a decrease in wake after sleep onset (WASO) by -12.91 min (95% CI = -25.62 to -0.20) by LT.
conclusionThe preliminary results of the study suggest that LT has some efficacy in improving sleep quality in insomnia. However, it needs to be validated in future clinical trials with larger samples.
Indexed as
Identifiers
39733392What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.