SynthesisCancer causes & control : CCC2016
An update of the WCRF/AICR systematic literature review on esophageal and gastric cancers and citrus fruits intake.
Synthesis in Cancer causes & control : CCC, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 6 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
21 citing papers in PubMed, 6 syntheses or guidelines pooled it, 36 citations in OpenAlex.
- Vegetarian and vegan diets and cancer incidence: a systematic review and meta-analysis of prospective studies.European journal of epidemiology · 2026Pooled it
- Risk factors for gastric cancer: an umbrella review of systematic reviews and meta-analyses.Frontiers in oncology · 2025Pooled it
- Diet and Esophageal Cancer Risk: An Umbrella Review of Systematic Reviews and Meta-Analyses of Observational Studies.Advances in nutrition (Bethesda, Md.) · 2022Pooled it
- Diet and Risk of Gastric Cancer: An Umbrella Review.Nutrients · 2022Pooled it
- Dietary intake and blood concentrations of antioxidants and the risk of cardiovascular disease, total cancer, and all-cause mortality: a systematic review and dose-response meta-analysis of prospective studies.The American journal of clinical nutrition · 2018Pooled it
- Dietary intakes of citrus fruit and risk of gastric cancer incidence: an adaptive meta-analysis of cohort studies.Epidemiology and health · 2016Pooled it
- Observational
- Cancers attributable to diet in Italy.International journal of cancer · 2025Article
- Challenges and future directions of gastric cancer prevention in Iran: Perspectives of the key stakeholders.Journal of education and health promotion · 2025Article
- Mortality burden and future projections of major risk factors for esophageal cancer in China from 1990 to 2019.General thoracic and cardiovascular surgery · 2024Article
- Disease burden and related risk factors of esophageal cancer in China and globally from 1990 to 2021, with forecast to 2035: An analysis and comparison.Tobacco induced diseases · 2024Article
- Disease burden of esophageal cancer attributable to low fruit intake in China and globally from 1990 to 2019.American journal of translational research · 2024Article
- Early Gastric Cancer: Update on Prevention, Diagnosis and Treatment.International journal of environmental research and public health · 2023Review
- Distribution, Antioxidant Capacity, Bioavailability and Biological Properties of Anthocyanin Pigments in Blood Oranges and Other Citrus Species.Molecules (Basel, Switzerland) · 2022Review
- Case-Control Study of Alcohol Usage and Fruit Intake and Stomach Cancer in the North Viet Nam.Asian Pacific journal of cancer prevention : APJCP · 2021Article
- Fresh fruit consumption may decrease the long-term risk of esophageal cancer mortality: A 30-year follow-up study in the Linxian Dysplasia Nutrition Intervention trial (NIT).Thoracic cancer · 2020Article
- Risk for gastric cancer in patients with gastric atrophy: a systematic review and meta-analysis.Translational cancer research · 2020Article
- Antioxidant-Rich Diet,Frontiers in oncology · 2020Article
- Cancers Due to Excess Weight, Low Physical Activity, and Unhealthy Diet.Deutsches Arzteblatt international · 2018Article
- Epidemiology, etiology, and prevention of esophageal squamous cell carcinoma in China.Cancer biology & medicine · 2017Article
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 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe 2007 World Cancer Research Fund/American Institute for Cancer Research expert report concluded that foods containing vitamin C probably protect against esophageal cancer and fruits probably protect against gastric cancer. Most of the previous evidence was from case-control studies, which may be affected by recall and selection biases. More recently, several cohort studies have examined these associations. We conducted a systematic literature review of prospective studies on citrus fruits intake and risk of esophageal and gastric cancers.
methodsPubMed was searched for studies published until 1 March 2016. We calculated summary relative risks and 95 % confidence intervals (95 % CI) using random-effects models.
resultsWith each 100 g/day increase of citrus fruits intake, a marginally significant decreased risk of esophageal cancer was observed (summary RR 0.86, 95 % CI 0.74-1.00, 1,057 cases, six studies). The associations were similar for squamous cell carcinoma (RR 0.87, 95 % CI 0.69-1.08, three studies) and esophageal adenocarcinoma (RR 0.93, 95 % CI 0.78-1.11, three studies). For gastric cancer, the nonsignificant inverse association was observed for gastric cardia cancer (RR 0.75, 95 % CI 0.55-1.01, three studies), but not for gastric non-cardia cancer (RR 1.02, 95 % CI 0.90-1.16, four studies). Consistent summary inverse associations were observed when comparing the highest with lowest intake, with statistically significant associations for esophageal (RR 0.77, 95 % CI 0.64-0.91, seven studies) and gastric cardia cancers (RR 0.62, 95 % CI 0.39-0.99, three studies).
conclusionsCitrus fruits may decrease the risk of esophageal and gastric cardia cancers, but further studies are needed.
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Identifiers
What 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.