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Collatuzzo G, Seyyedsalehi MS, Rezaeianzadeh A, Marzban M, Rashidian H, Hadji M, Kamangar F, Etemadi A, Pukkala E, Zendehdel K, Boffetta P. Consumption of Yoghurt and Other Dairy Products and Risk of Colorectal Cancer in Iran: The IROPICAN Study. Nutrients 2022; 14:2506. [PMID: 35745234 PMCID: PMC9228368 DOI: 10.3390/nu14122506] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/02/2022] [Accepted: 06/08/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND There is evidence of an inverse association between yoghurt intake and risk of colorectal cancer (CRC). We aimed at investigating the association between the intake of yoghurt and other dairy foods consumed in Iran and CRC risk. METHODS Our analysis included 4070 subjects within the IROPICAN (Iran Study of Opium and Cancer) study. Detailed information was collected by the use of validated questionnaires. We estimated adjusted odds ratios (OR) and 95% confidence intervals (CI) for the association between the intake of total dairy products, and, separately, of yoghurt, milk, cheese, kashk, dough, cream, ice cream, and other milk products, and CRC using unconditional logistic regression analyses. The intake was categorized in tertiles. RESULTS Overall, we analyzed 865 cases and 3205 controls. Total dairy products intake was not associated with CRC. The OR for one tertile increase (OR_T) in yoghurt intake was 0.97 (95% CI 0.87-1.08) for CRC and 0.66 (95% CI 0.52-0.84) for proximal colon cancer. Cream intake was associated with CRC (OR_T3 = 1.33, 95% CI 1.08-1.64), colon (OR_T3 = 1.37, 95% CI 1.03-1.81), and proximal cancer (OR_T3 = 1.29, 95% CI 1.04-1.61). The OR of distal colon cancer for ice cream intake was 0.59 (95% CI 0.43-0.82). Other dairy products were not associated with CRC risk.
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Affiliation(s)
- Giulia Collatuzzo
- Department of Medical and Surgical Sciences, University of Bologna, 40138 Bologna, Italy; (G.C.); (M.S.S.)
| | - Monireh Sadat Seyyedsalehi
- Department of Medical and Surgical Sciences, University of Bologna, 40138 Bologna, Italy; (G.C.); (M.S.S.)
- Cancer Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran 1416634793, Iran; (H.R.); (M.H.); (K.Z.)
| | - Abbas Rezaeianzadeh
- Colorectal Research Center, Shiraz University of Medical Sciences, Shiraz 7146864685, Iran;
| | - Maryam Marzban
- Department of Public Health, School of Public Health, Bushehr University of Medical Science, Bushehr 7514763448, Iran;
- Clinical Research Development Center, The Persian Gulf Martyrs, Bushehr University of Medical Science, Bushehr 7514763448, Iran
| | - Hamideh Rashidian
- Cancer Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran 1416634793, Iran; (H.R.); (M.H.); (K.Z.)
| | - Maryam Hadji
- Cancer Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran 1416634793, Iran; (H.R.); (M.H.); (K.Z.)
- Health Sciences Unit, Faculty of Social Sciences, Tampere University, 33100 Tampere, Finland;
| | - Farin Kamangar
- Department of Biology, School of Computer, Mathematical, and Natural Sciences, Morgan State University, Baltimore, MD 21251, USA;
| | - Arash Etemadi
- Digestive Oncology Research Center, Digestive Diseases Research Institute, Shariati Hospital, Tehran University of Medical Sciences, Tehran 1416634793, Iran;
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD 20810, USA
| | - Eero Pukkala
- Health Sciences Unit, Faculty of Social Sciences, Tampere University, 33100 Tampere, Finland;
- Finnish Cancer Registry—Institute for Statistical and Epidemiological Cancer Research, 00100 Helsinki, Finland
| | - Kazem Zendehdel
- Cancer Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran 1416634793, Iran; (H.R.); (M.H.); (K.Z.)
| | - Paolo Boffetta
- Department of Medical and Surgical Sciences, University of Bologna, 40138 Bologna, Italy; (G.C.); (M.S.S.)
- Stony Brook Cancer Center, Stony Brook University, Stony Brook, NY 11794, USA
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