A spatial database of colorectal cancer patients and potential nutritional risk factors in an urban area in the Middle E
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A spatial database of colorectal cancer patients and potential nutritional risk factors in an urban area in the Middle East Neda Firouraghi1, Nasser Bagheri2, Fatemeh Kiani1, Ladan Goshayeshi3, Majid Ghayour‑Mobarhan4, Khalil Kimiafar5, Saeid Eslami1 and Behzad Kiani1*
Abstract Objectives: Colorectal cancer (CRC) is the third most common cancer across the world that multiple risk factors together contribute to CRC development. There is a limited research report on impact of nutritional risk factors and spatial variation of CRC risk. Geographical information system (GIS) can help researchers and policy makers to link the CRC incidence data with environmental risk factor and further spatial analysis generates new knowledge on spatial variation of CRC risk and explore the potential clusters in the pattern of incidence. This spatial analysis enables poli‑ cymakers to develop tailored interventions. This study aims to release the datasets, which we have used to conduct a spatial analysis of CRC patients in the city of Mashhad, Iran between 2016 and 2017. Data description: These data include five data files. The file CRCcases_Mashhad contains the geographical locations of 695 CRC cancer patients diagnosed between March 2016 and March 2017 in the city of Mashhad. The Mash‑ had_Neighborhoods file is the digital map of neighborhoods division of the city and their population by age groups. Furthermore, these files include contributor risk factors including average of daily red meat consumption, average of daily fiber intake, and average of body mass index for every of 142 neighborhoods of the city. Keywords: Colorectal cancer, Geographical information systems, Spatial analysis, Red meat, Dietary fiber, Body mass index Objective Colorectal cancer (CRC) is the third most frequently diagnosed malignancy and the second most common cause of death from cancer worldwide [1, 2]. CRC incidence varies in the world with the highest incidence rates in Australia, New Zealand, Europe, and North America and the lowest in Africa and South-Central Asia [1, 3]. The incidence rate of CRC was 7–8 per 100,000 for both males and females in Iran from 1996 to 2000 [4]. However, this incidence rate has been increased to 11.8 and *Correspondence: [email protected] 1 Department of Medical Informatics, School of Medicine, Mashhad University of Medical Science, Mashhad, Iran Full list of author information is available at the end of the article
16.5 (per 100,000) for females and males in 2014 [5]. This increasing trend in CRC incidence may related to high rate of urbanization, people’s lifestyle and diet change [5, 6]. Both environmental and lifestyle factors contribute to the risk of CRC. Some important such factors include age, high body mass index (BMI), high-fat diet, alcohol consumption, smoking, consumption of red meat, low intake of vegetables and fruit (fiber intake) [2, 7]. Spatial analysis of CRC incidence may provide a new knowledge on the relationships between environmental risk factors an
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