1. Allium vegetables intake and the risk of gastric cancer in the Stomach cancer Pooling (StoP) Project
- Author
-
Dalmartello, Michela, Turati, Federica, Zhang, Zuo-Feng, Lunet, Nuno, Rota, Matteo, Bonzi, Rossella, Galeone, Carlotta, Martimianaki, Georgia, Palli, Domenico, Ferraroni, Monica, Yu, Guo-Pei, Morais, Samantha, Malekzadeh, Reza, López-Carrillo, Lizbeth, Zaridze, David, Maximovitch, Dmitry, Aragonés, Nuria, Fernández-Tardón, Guillermo, Martin, Vicente, Vioque, Jesus, Garcia de la Hera, Manoli, Curado, Maria Paula, Coimbra, Felipe Jose Fernandez, Assumpcao, Paulo, Pakseresht, Mohammadreza, Hu, Jinfu, Hernández-Ramírez, Raúl Ulises, Ward, Mary H, Pourfarzi, Farhad, Mu, Lina, Tsugane, Shoichiro, Hidaka, Akihisa, Lagiou, Pagona, Lagiou, Areti, Trichopoulou, Antonia, Karakatsani, Anna, Boffetta, Paolo, Camargo, M Costanza, Negri, Eva, La Vecchia, Carlo, and Pelucchi, Claudio
- Subjects
Biomedical and Clinical Sciences ,Oncology and Carcinogenesis ,Clinical Research ,Cancer ,Case-Control Studies ,Diet ,Garlic ,Humans ,Risk Factors ,Stomach Neoplasms ,Vegetables ,Public Health and Health Services ,Oncology & Carcinogenesis ,Oncology and carcinogenesis - Abstract
BackgroundThe role of allium vegetables on gastric cancer (GC) risk remains unclear.MethodsWe evaluated whether higher intakes of allium vegetables reduce GC risk using individual participant data from 17 studies participating in the "Stomach cancer Pooling (StoP) Project", including 6097 GC cases and 13,017 controls. Study-specific odds ratios (ORs) were pooled using a two-stage modelling approach.ResultsTotal allium vegetables intake was inversely associated with GC risk. The pooled OR for the highest versus the lowest study-specific tertile of consumption was 0.71 (95% confidence interval, CI, 0.56-0.90), with substantial heterogeneity across studies (I2 > 50%). Pooled ORs for high versus low consumption were 0.69 (95% CI, 0.55-0.86) for onions and 0.83 (95% CI, 0.75-0.93) for garlic. The inverse association with allium vegetables was evident in Asian (OR 0.50, 95% CI, 0.29-0.86) but not European (OR 0.96, 95% CI, 0.81-1.13) and American (OR 0.66, 95% CI, 0.39-1.11) studies. Results were consistent across all other strata.ConclusionsIn a worldwide consortium of epidemiological studies, we found an inverse association between allium vegetables and GC, with a stronger association seen in Asian studies. The heterogeneity of results across geographic regions and possible residual confounding suggest caution in results interpretation.
- Published
- 2022