SynthesisOncotarget2017
An inverse association between tea consumption and colorectal cancer risk.
Synthesis in Oncotarget, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 7 of them syntheses 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
22 citing papers in PubMed, 7 syntheses or guidelines pooled it, 47 citations in OpenAlex.
- Dietary factors and colorectal cancer risk in Asian populations: a systematic review and meta-analysis of cohort studies.Cancer causes & control : CCC · 2025Pooled it
- National and subnational incidence, mortality and associated factors of colorectal cancer in China: A systematic analysis and modelling study.Journal of global health · 2023Pooled it
- Association between tea consumption and colorectal cancer: a systematic review and meta-analysis of a population-based study.BMC gastroenterology · 2023Pooled it
- Role of Diet in Colorectal Cancer Incidence: Umbrella Review of Meta-analyses of Prospective Observational Studies.JAMA network open · 2021Pooled it
- Tea consumption and colorectal cancer risk: a meta-analysis of prospective cohort studies.European journal of nutrition · 2020Pooled it
- Pooled it
- Green tea (Camellia sinensis) for the prevention of cancer.The Cochrane database of systematic reviews · 2020Pooled it
- Green Tea Components: In Vitro and In Vivo Evidence for Their Anticancer Potential in Colon Cancer.Cancers · 2025Review
- The interplay of exercise and green tea: a new road in cancer therapy.Cancer cell international · 2025Review
- Association between green tea intake and digestive system cancer risk in European and East Asian populations: a Mendelian randomization study.European journal of nutrition · 2024Article
- Association of tea and its extracts with colorectal adenomas: meta-analysis and systematic review.Frontiers in nutrition · 2023Review
- Consumption of Coffee and Green Tea and the Risk of Colorectal Cancer in Korea: The Health Examinees Study.Journal of cancer prevention · 2022Article
- Article
- Polyphenols, Olive oil and Colonrectal cancer: the effect of Mediterranean Diet in the prevention.Acta bio-medica : Atenei Parmensis · 2022Article
- Role of Ginseng, Quercetin, and Tea in Enhancing Chemotherapeutic Efficacy of Colorectal Cancer.Frontiers in medicine · 2022Review
- Green tea and cancer and cardiometabolic diseases: a review of the current epidemiological evidence.European journal of clinical nutrition · 2021Review
- Tea polyphenols and their chemopreventive and therapeutic effects on colorectal cancer.World journal of gastroenterology · 2020Review
- The Protective Effect of Polyphenols for Colorectal Cancer.Frontiers in immunology · 2020Review
- Protective Effect of Green Tea Consumption on Colorectal Cancer Varies by Lifestyle Factors.Nutrients · 2019Article
- Dietary patterns and the risk of colorectal cancer and adenoma: a case control study in Iran.Gastroenterology and hepatology from bed to bench · 2019Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
It is well known that the tea extracts, mainly polyphenols as chemo-preventive elements, could act as cancer progression blockers. Although the association between tea consumption and colorectal cancer risk has been widely investigated, the results still remain inconsistent. We conducted a dose-response meta-analysis to evaluate their relationships by enrolling qualified 29 literatures. The summary odds ratio (OR) of colorectal cancer for the highest vs. lowest tea consumption was 0.93 with 0.87-1.00 of 95% confidence intervals (CIs) among all studies with modest heterogeneity (P = 0.001, I2 = 43.4%). Stratified analysis revealed that tea, especially green tea, had a protective effect among female and rectal cancer patients. Particularly, the dose-response analysis showed that there was a significant inverse association between an increment of 1 cup/day of tea consumption and colorectal cancer risk in the subgroup of the green tea drinking (OR = 0.98, 95% CI = 0.96-1.01, Pnonlinear = 0.003) and female (OR = 0.68, 95% CI = 0.56-0.81, Pnonlinear < 0.001). Our findings indicate that tea consumption has an inverse impact on colorectal cancer risk, which may have significant public health implications in the prevention of colorectal cancer and further similar researches.
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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.