title: "Moxibustion for Depression: What a 2024 Meta-Analysis Found"
description: "A meta-analysis of 15 randomized controlled trials suggests moxibustion may modestly improve depressive symptoms, but the evidence quality is low to very low."
date: "2025"
studyType: "Meta-analysis"
sampleSize: 1510
journal: "Medicine"
pubmedId: "42888532"
A meta-analysis of 15 randomized controlled trials (1,510 patients) found that moxibustion, alone or combined with other therapies, was associated with better depression outcomes than comparison treatments and fewer adverse reactions. The overall quality of evidence is rated low to very low, so these findings are preliminary.
Moxibustion is a traditional Chinese medicine practice in which dried mugwort (*Artemisia vulgaris*) is burned near specific points on the body, typically to warm them. It has been studied for a range of conditions, and in recent years researchers have begun testing it as a treatment for depression. This meta-analysis, published in the journal *Medicine*, pooled data from trials searched across seven databases through December 20, 2023.
The primary outcome was the overall effective rate, meaning the proportion of patients who responded to treatment. Moxibustion, either alone or combined with other therapies, produced a higher response rate than the comparison treatments (relative risk 1.07, 95% confidence interval [CI] 1.03 to 1.10, P = .0003). A relative risk of 1.07 indicates a modest difference: patients receiving moxibustion were about 7% more likely to respond. The confidence interval is narrow and sits entirely above 1, which supports a real, if small, difference across these trials.
The second primary outcome was scores on the Hamilton Depression Rating Scale (HAMD), a clinician-administered measure of depressive symptom severity. Moxibustion was associated with a greater reduction in HAMD scores compared with other treatments used alone (mean difference -2.10, 95% CI -3.00 to -1.20). Whether this reduction is clinically meaningful depends on the threshold used, and the authors' conclusions rest on statistical rather than clinical significance. The comparison with antidepressant medication is noteworthy but must be read carefully. The authors reported that moxibustion's effect was comparable to antidepressants (mean difference -0.60, 95% CI -1.31 to 0.12, P = .10). This result did not reach statistical significance, and the confidence interval includes both a meaningful benefit and no difference. "Comparable" here reflects an absence of a demonstrated difference, not evidence of equivalence.
On safety, the incidence of adverse reactions was lower with moxibustion than with comparison treatments (relative risk 0.57, 95% CI 0.39 to 0.84, P = .005). The specific adverse events and how they were recorded across the included trials are not detailed in the abstract, so readers should interpret this finding with that limitation in mind.
The most important caveat concerns the quality of the evidence. The authors graded the certainty of the findings as low to very low using GRADE methodology. Across the 15 included trials, common limitations in this type of research include small sample sizes, unclear randomization and blinding procedures, and difficulty blinding participants to a treatment involving heat and smoke. Sham controls for moxibustion are also challenging to design well. These factors mean the pooled estimates may overstate the true effect. The authors themselves conclude that further high-quality studies are needed to confirm effectiveness. [E tier, for the strength of conclusions the evidence can support]
It is also worth noting that the study is a meta-analysis of trials conducted largely within the context of Chinese medicine research. Generalizability to other populations, treatment protocols, and healthcare settings has not been established by this work.
| Field | Detail |
|---|---|
| Study type | Meta-analysis of randomized controlled trials |
| Sample size | 1,510 patients across 15 trials |
| Population | Adults with depression |
| Intervention | Moxibustion, alone or combined with other therapies |
| Comparators | Sham treatment, no treatment, conventional therapies, antidepressants |
| Primary outcomes | Overall effective rate; Hamilton Depression Rating Scale scores |
| Secondary outcome | Adverse reaction incidence |
| Evidence quality | Low to very low (GRADE) |
| Journal | Medicine |
| PubMed ID | 42888532 |
1. Moxibustion for depression: A meta-analysis. *Medicine*. PubMed. https://pubmed.ncbi.nlm.nih.gov/42888532/
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