SynthesisBMC cancer2025
The significant impact of opium use on various types of cancer: an updated - systematic review and meta-analysis.
Synthesis in BMC cancer, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.
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, 1 synthesis or guideline pooled it.
- Pooled it
- Investigation of serum concentration and the type of opioid used in patients with opium poisoning.Toxicology reports · 2026Article
- Laryngeal and Subglottic Necrosis Following Long-Term Heroin Inhalation.Case reports in otolaryngology · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveThe existing literature on the direct effects of opioid use on cancer is limited. The goal of our systematic review and meta-analysis is to consolidate the findings of previous studies and provide a pooled effect size regarding the association between opioid usage and cancer.
methodsThe PRISMA guidelines were employed to construct a framework for conducting this systematic review and meta-analysis. A systematic search was conducted in international and national databases. A search of PubMed, Web of Science, Scopus, and national electronic databases was conducted up to May 2024. The random effects model was employed for the presentation of results with a 95% confidence interval. The statistical analysis was conducted using Stata 11.
resultsOut of 1674 articles were retrieved 38 studies remained in the final analysis (six cohort study and 32 case-control studies). The pooled adjusted odds ratio of opium on esophageal cancer was 1.68 (95% CI: 1.36, 2.08), for bladder cancer was 5.00(95% CI: 3.76, 6.66), for head and neck cancer was 4.93 (95% CI: 2.41, 10.06) for pancreatic cancer was 2.4 (95% CI: 1.62, 2.56) for lung cancer was 2.89(95% CI: 2.14, 3.30) for laryngeal cancer was 6.76 (95% CI: 3.77, 11.80) for gastric cancer was 3.13 (95% CI: 1.92, 5.11) and for colorectal cancer was 2.51 (95% CI: 1.04, 6.07).All association were statistically significant.
conclusionThe findings underscore the potential carcinogenic effects of opium on cancers. Public health organizations should work collaboratively to mitigate opioid exposure while promoting alternative pain management strategies to protect community health and reduce the burden of cancer.
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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.