It has been reported that excessive artificial light at night (ALAN) could harm human health since it disturbs the natural bio-rhythm and sleep. Such conditions can lead to various diseases, including cancer. In this study, we have evaluated the association between ALAN and prevalence rates of cancer in females on a regional basis, after adjusting for other risk factors, including obesity, smoking, alcohol consumption rates and PM10 levels. The prevalence rates for breast cancer were found to be significantly associated with ALAN in urban and rural areas. Furthermore, no association was found with ALAN in female lung, liver, cervical, gastric and colon cancer. Despite the limitations of performing ecological studies, this report suggests that ALAN might be a risk factor for breast cancer, even in rural areas.
Bibliographical noteFunding Information:
This work was supported by a future environmental R&D grant (RE201206020) funded by the Korean Environmental Industry and Technology Institute. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. All authors declare no conflicts of interest.
© 2015 Informa Healthcare USA, Inc.
- Artificial light at night
- Breast cancer
- Generalized poisson distribution
- Light pollution
- Treatment prevalence
ASJC Scopus subject areas
- Physiology (medical)