West Asia Organization for Cancer Prevention (WAOCP), APOCP's West Asia Chapter. Asian Pacific Journal of Cancer Prevention 1513-7368 20 9 2019 09 01 The Association of Dietary Intake of Calcium and Vitamin D to Colorectal Cancer Risk among Iranian Population 2825 2830 88746 10.31557/APJCP.2019.20.9.2825 EN Payam Hosseinzadeh Gastrointestinal and Liver Diseases Research Center (GILDRC), Iran University of Medical Sciences (IUMS), Tehran, Iran. Mohammad Javanbakht Nephrology and Urology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran. Mahdi Alemrajabi Firoozgar Hospital, FCRDC, Iran University of Medical Sciences, Tehran, Iran. Ali Gholami Noncommunicable Diseases Research Center, Neyshabur University of Medical Sciences, Neyshabur, Iran. Department of Epidemiology and Biostatistics, School of Public Health, Neyshabur University of Medical Sciences, Neyshabur, Iran. Bahare Amirkalali Gastrointestinal and Liver Diseases Research Center (GILDRC), Iran University of Medical Sciences (IUMS), Tehran, Iran. Masoudreza Sohrabi Gastrointestinal and Liver Diseases Research Center (GILDRC), Iran University of Medical Sciences (IUMS), Tehran, Iran. Farhad Zamani Gastrointestinal and Liver Diseases Research Center (GILDRC), Iran University of Medical Sciences (IUMS), Tehran, Iran. Journal Article 2019 07 14 Background: Vitamin D and Calcium have a possible protective impact versus rectal neoplasm. Vitamin D, an<br />important nutrient, is vital to regulate the absorption of calcium and bone mineralization; nevertheless, in a case-control<br />study in Iran, we investigated the relationship among the dietary intake of vitamin D and calcium with the hazard of<br />rectal neoplasm. Methods: 363 subjects (162 cases and 201 controls) participated in the case- control Study from<br />March 2017 to November 2018. Dietary intake of Calcium and Vitamin D was calculated using a 148-items foodfrequency<br />questionnaire. Results: Since altering the strong confounding agents, the multivariate risk proportion within<br />the dietary vitamin D intake was OR=0.2, 95%CI 0.1-0.5, P_value case of calcium and rectal cancer. Conclusions: Taken together, a possible reduction in the hazard of rectal neoplasm<br />with dietary intake of Vitamin D within Iranian patients was observed. https://journal.waocp.org/article_88746_61bfe8bb7199f8ce661feeac3c7646d1.pdf