Evidence map›Paper›PMID 28886600›Full record

ArticleEnvironmental health perspectives2017

Outdoor Light at Night and Breast Cancer Incidence in the Nurses' Health Study II.

Peter James, Kimberly A Bertrand, Jaime E Hart, Eva S Schernhammer, Rulla M Tamimi, Francine Laden

Open access · diamondAbstract read
In one paragraph

Article in Environmental health perspectives, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed, 4 pooled it
9.5field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

66 citing papers in PubMed, 4 syntheses or guidelines pooled it, 146 citations in OpenAlex.

  1. Pooled it
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  5. Review
  6. Article
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  9. Breast cancer: pathogenesis and treatments.Signal transduction and targeted therapy · 2025
    Review
  10. Radiofrequency radiation from mobile phones and the risk of breast cancer: A multicenter case-control study with an additional suspected comparison group.Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences · 2025
    Article
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  16. Association between Outdoor Light at Night and Prostate Cancer in the Health Professionals Follow-up Study.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2023
    Article
  17. Review
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6 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

Peter JamesDepartment of Epidemiology, Harvard T.H. Chan School of Public Health , Boston, Massachusetts, USA.
Kimberly A BertrandSlone Epidemiology Center at Boston University , Boston, Massachusetts, USA.
Jaime E HartDepartment of Environmental Health, Harvard T.H. Chan School of Public Health , Boston, Massachusetts, USA.
Eva S SchernhammerDepartment of Epidemiology, Harvard T.H. Chan School of Public Health , Boston, Massachusetts, USA.
Rulla M TamimiDepartment of Epidemiology, Harvard T.H. Chan School of Public Health , Boston, Massachusetts, USA.
Francine LadenDepartment of Epidemiology, Harvard T.H. Chan School of Public Health , Boston, Massachusetts, USA.
Brigham and Women's Hospital · USBoston University · US

Funding

Life Course Cancer Epidemiology Cohort in WomenUM1CA176726 · NCI · HARVARD SCHOOL OF PUBLIC HEALTH · PI WILLETT, WALTER C. · 2013 to 2017
$15.7M
CVD Epidemiology Training Program in Behavior, the Environment and Global HealthT32HL098048 · NHLBI · HARVARD UNIVERSITY D/B/A HARVARD SCHOOL OF PUBLIC HEALTH · PI Goodarz Danaei, ERIC B RIMM · 2009 to 2026
$6.9M
Minimizing Cancer Risk in Shift WorkersR01OH009803 · OH · BRIGHAM AND WOMEN'S HOSPITAL · PI SCHERNHAMMER, EVA S · 2010 to 2018
$4.5M
High Resolution Measures of Behavioral Cancer Risk Factors From Mobile TechnologyR00CA201542 · NCI · HARVARD PILGRIM HEALTH CARE, INC. · PI JAMES, PETER · 2017 to 2019
$747k
High resolution measures of behavioral cancer risk factors from mobile technologyK99CA201542 · NCI · HARVARD SCHOOL OF PUBLIC HEALTH · PI JAMES, PETER · 2016 to 2016
$129k
NCI NIH HHS K99 CA201542NCI NIH HHS R00 CA201542NCI NIH HHS UM1 CA176726NHLBI NIH HHS T32 HL098048NIOSH CDC HHS R01 OH009803
6 · The paper itself

Abstract

backgroundAnimal and epidemiologic studies suggest that exposure to light at night (LAN) may disrupt circadian patterns and decrease nocturnal secretion of melatonin, which may disturb estrogen regulation, leading to increased breast cancer risk.

objectivesWe examined the association between residential outdoor LAN and breast cancer incidence using data from the nationwide U.S.-based Nurses' Health Study II cohort.

methodsWe followed 109,672 women from 1989 through 2013. Cumulative LAN exposure was estimated using time-varying satellite data for a composite of persistent nighttime illumination at ∼1 km

resultsOver 2,187,425 person-years, we identified 3,549 incident breast cancer cases. Based on a fully adjusted model, the estimated HR for incident breast cancer with an interquartile range (IQR) (31.6 nW/cm

conclusionsAlthough further work is required to confirm our results and to clarify potential mechanisms, our findings suggest that exposure to residential outdoor light at night may contribute to invasive breast cancer risk. https://doi.org/10.1289/EHP935.

Indexed as

AdultBreast NeoplasmsEnvironmental ExposureFemaleHumansIncidenceLightingMiddle AgedProspective StudiesRisk Factors

Identifiers

PMID28886600
PMCPMC5783660
OpenAlexW2752671989

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.