Light at Night Co‐distributes with Incident Breast but not Lung Cancer in the Female Population of Israel

@article{Kloog2008LightAN,
  title={Light at Night Co‐distributes with Incident Breast but not Lung Cancer in the Female Population of Israel},
  author={Itai Kloog and Abraham Haim and Richard G. Stevens and M. Barchana and Boris A. Portnov},
  journal={Chronobiology International},
  year={2008},
  volume={25},
  pages={65 - 81}
}
Recent studies of shift‐working women have reported that excessive exposure to light at night (LAN) may be a risk factor for breast cancer. However, no studies have yet attempted to examine the co‐distribution of LAN and breast cancer incidence on a population level with the goal to assess the coherence of these earlier findings with population trends. Coherence is one of Hill's “criteria” (actually, viewpoints) for an inference of causality. Nighttime satellite images were used to estimate LAN… 

Global Co‐Distribution of Light at Night (LAN) and Cancers of Prostate, Colon, and Lung in Men

A significant positive association between population exposure to LAN and incidence rates of prostate cancer is found, but there is no such association with lung cancer or colon cancer.

Nighttime light level co-distributes with breast cancer incidence worldwide

A significant positive association between population LAN level and incidence rates of breast cancer is found and provides coherence of the previously reported case–control and cohort studies with the co-distribution of LAN and breast cancer in entire populations.

Domestic light at night and breast cancer risk: a prospective analysis of 105 000 UK women in the Generations Study

There was no evidence that LAN exposure increased the risk of subsequent breast cancer, although the suggestion of a lower breast cancer risk in pre-menopausal women with a history of night waking in their twenties may warrant further investigation.

A case-referent study: light at night and breast cancer risk in Georgia

Positive associations between LAN and BC incidence are suggested, especially among whites, and the consistency of the findings with previous studies suggests that there could be fundamental biological links between exposure to artificial LAN and increased BC incidence.

Outdoor light at night and postmenopausal breast cancer risk in the NIH‐AARP diet and health study

Higher outdoor LAN exposure may be a risk factor for postmenopausal breast cancer, and the relationship between LAN and breast cancer risk may differ by individual characteristics, such as smoking, alcohol drinking, sleep duration and BMI, and neighborhood environment.

Testing the Light-at-Night (LAN) Theory for Breast Cancer Causation

The “light-at-night” (LAN) theory began with a focus on the mystery of breast cancer but it is now becoming evident that artificial lighting, and the circadian disruption that can result, may also influence the risk of some other diseases of modern life, such as prostate cancer in men, adultonset diabetes, and obesity.

Outdoor light at night at residences and breast cancer risk in Canada

No association was found between residential outdoor LAN and breast cancer for either measure of LAN when considering interactions for menopausal status and past/current night work status, consistent with studies reporting that outdoor LAN has a small effect or no effect on breast cancer risk.

Light-at-night, circadian disruption and breast cancer: assessment of existing evidence.

  • R. Stevens
  • Medicine
    International journal of epidemiology
  • 2009
If a consensus eventually emerges that LAN does increase risk, then the mechanisms for the effect are important to elucidate for intervention and mitigation and will provide for the development of lighting technologies at home and at work that minimize circadian disruption, while maintaining visual efficiency and aesthetics.
...

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