ArticleEnvironmental monitoring and assessment2019
The association of gastrointestinal cancers (esophagus, stomach, and colon) with solar ultraviolet radiation in Iran-an ecological study.
Article in Environmental monitoring and assessment, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed, 13 citations in OpenAlex.
- Gastric cancer susceptibility mapping using GIS and machine learning in East Azerbaijan province, Iran.International journal of health geographics · 2026Article
- The Effects of Environmental Factors on General Human Health: A Scoping Review.Healthcare (Basel, Switzerland) · 2024Article
- Prediction of five-year survival among esophageal cancer patients using machine learning.Heliyon · 2023Article
- Sudden death in the southern region of Saudi Arabia: A retrospective study.World journal of clinical cases · 2023Article
- Geographic variation in urinary tract and genital cancers in Iran: a hypothesis involving exposure to solar radiation.BMC research notes · 2023Article
- The Association of Latitude and Altitude with COVID-19 Symptoms: A VIRUS: COVID-19 Registry Analysis.The open respiratory medicine journal · 2022Article
- Article
- Does living at moderate altitudes in Austria affect mortality rates of various causes? An ecological study.BMJ open · 2021Article
- Differences in the prevalence of physical activity and cardiovascular risk factors between people living at low (<1,001 m) compared to moderate (1,001-2,000 m) altitude.AIMS public health · 2021Article
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Authors and funding
4 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Iran has variations in the incidence of cancer in its different provinces. Moreover, it is one of the countries with a high incidence of gastrointestinal cancers in the world. The aim of this study was to investigate the relation between the incidence of esophageal, stomach, and colon cancers with ultraviolet radiation. This is an ecological study. The age-standardized incidence of cancer from 2004 to 2008 was obtained from the National Cancer Registry of Iran for all provinces. UV index data was taken from the world weather site. The altitude and latitude of cities were obtained from the National Topography Organization. Demographic variables were taken from the STEPS report of the Ministry of Health. In this study, lung cancer were used as the index of the effects of smoking. Data were analyzed using the SPSS22 software and through linear regression. UV emission levels showed a strong negative correlation with the incidence of esophageal and gastric cancers, in both genders, in all years. However, this correlation was stronger in men. UV radiation showed a significant correlation with colon cancer among both genders as well. There was no relation between altitude and incidence of cancer. Linear regression results showed that with a unit increase in UV, the incidence of gastric and esophagus cancers in males decreases by β = -4.99 and β = - 3.16 significant coefficients, respectively. Cities with higher levels of UV index have a relatively lower incidence of gastrointestinal cancers. Ultraviolet radiation may act as a protective factor against these cancers.
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