Evidence map›Paper›PMID 19959687›Full record

ArticleCancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology2009

Passive smoking and risk of breast cancer in the California teachers study.

Peggy Reynolds, Debbie Goldberg, Susan Hurley, David O Nelson, Joan Largent, Katherine D Henderson, Leslie Bernstein

Open access · bronzeAbstract read
In one paragraph

Article in Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 5 pooled it
1.6field-weighted citation impact, top 16% 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

28 citing papers in PubMed, 5 syntheses or guidelines pooled it, 57 citations in OpenAlex.

  1. Pooled it
  2. Exposure to Secondhand Smoke and Risk of Cancer in Never Smokers: A Meta-Analysis of Epidemiologic Studies.International journal of environmental research and public health · 2018
    Pooled it
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  6. Article
  7. Somatic Mutation ofCancers · 2019
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  11. The Role of Nitrosamine (NNK) in Breast Cancer Carcinogenesis.Journal of mammary gland biology and neoplasia · 2017
    Review
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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

7 authors at 5 institutions in 1 country.

Peggy ReynoldsNorthern California Cancer Center, Berkeley, 94704, USA. preynolds@nccc.org
Debbie Goldberg
Susan Hurley
David O Nelson
Joan Largent
Katherine D Henderson
Leslie Bernstein
Cancer Prevention Institute of California · USUniversity of California, Irvine · USCity of Hope · USNorthern California Research · USStanford University · US

Funding

CALIFORNIA TEACHERS STUDYR01CA077398 · NCI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI BERNSTEIN, LESLIE · 1998 to 2014
$29.7M
Research and Mentoring on Energetic Factors and Cancer: Established InvestigatorK05CA136967 · NCI · BECKMAN RESEARCH INSTITUTE/CITY OF HOPE · PI BERNSTEIN, LESLIE · 2009 to 2013
$684k
NCI NIH HHS K05 CA136967NCI NIH HHS N01 PC035136NCI NIH HHS N01 PC035139NCI NIH HHS N01-PC-35136NCI NIH HHS N01-PC-35139NCI NIH HHS N02 PC015105NCI NIH HHS R01 CA077398NCI NIH HHS R01 CA77398PHS HHS U55/CCR921930-02
6 · The paper itself

Abstract

backgroundAlthough recent reviews have suggested active smoking to be a risk factor for breast cancer, the association with passive smoke exposure remains controversial. This risk association was explored in a large prospective study of women, the California Teachers Study.

methodsDetailed lifetime information on passive smoke exposure by setting (home, work, or social) and by age of exposure was collected in 1997 from 57,523 women who were lifetime nonsmokers and had no history of breast cancer. In the ensuing decade, a total of 1,754 women were diagnosed with invasive breast cancer. Cox proportional hazards models were fit to estimate hazard ratios (HR) and 95% confidence intervals (95% CI) associated with several lifetime passive smoke exposure metrics.

resultsFor all breast cancer, measures of higher lifetime passive smoking intensity and duration were associated with nonstatistically significant HRs of 1.11 to 1.14. For postmenopausal women, HRs for lifetime low, medium, and high cumulative exposure were 1.17 (95% CI, 0.91-1.49), 1.19 (95% CI, 0.93-1.53), and 1.26 (95% CI, 0.99-1.60). For women exposed in adulthood (age > or =20 years), risk was elevated at the highest level of cumulative exposure (HR, 1.18; 95% CI, 1.00-1.40), primarily among postmenopausal women (HR, 1.25; 95% CI, 1.01-1.56). A statistically significant dose response was detected when analysis was restricted to women with moderate to high levels of passive smoke exposure.

conclusionThese results suggest that cumulative exposures to high levels of sidestream smoke may increase breast cancer risk among postmenopausal women who themselves have never smoked tobacco products.

Indexed as

AdultBreast NeoplasmsCaliforniaCohort StudiesFemaleFollow-Up StudiesHumansIncidenceNeoplasm InvasivenessNeoplasm StagingPrognosisProspective StudiesRisk FactorsSurvival RateTeachingTobacco Smoke PollutionTobacco Smoke Pollution

Identifiers

PMID19959687
PMCPMC2908531
OpenAlexW2118408801

What OpenQuestion holds

Textmetadata
LicenceTDM
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.