Evidence map›Paper›PMID 30668861›Full record

ArticleInternational journal of epidemiology2019

Smoking and breast cancer risk by race/ethnicity and oestrogen and progesterone receptor status: the Multiethnic Cohort (MEC) study.

Inger T Gram, Song-Yi Park, Gertraud Maskarinec, Lynne R Wilkens, Christopher A Haiman, Loïc Le Marchand

Abstract read
In one paragraph

Article in International journal of epidemiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

24 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. The Multiethnic Cohort: A Resource for the Study of Genetic and Nongenetic Cancer Risk across Populations.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2026
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  8. A Health Inequity: Associations Between Cigarette Smoking Status and Mammogram Screening Among Women of Color.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2023
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  13. Relationship between Cigarette Smoking and Cancer Characteristics and Survival among Breast Cancer Patients.International journal of environmental research and public health · 2022
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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

6 authors.

Inger T GramDepartment of Community Medicine, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromsø, Norway.
Song-Yi ParkPopulation Science in the Pacific, Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI, USA.
Gertraud MaskarinecPopulation Science in the Pacific, Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI, USA.
Lynne R WilkensPopulation Science in the Pacific, Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI, USA.
Christopher A HaimanDepartment of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.
Loïc Le MarchandPopulation Science in the Pacific, Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI, USA.

Funding

University of Hawaii Cancer Center CCSGP30CA071789 · NCI · UNIVERSITY OF HAWAII AT MANOA · PI Xin Chen · 1996 to 2026
$56.2M
Understanding Population Differences in Cancer: The MEC StudyU01CA164973 · NCI · UNIVERSITY OF HAWAII AT MANOA · PI HAIMAN, CHRISTOPHER ALAN, LE MARCHAND, LOIC · 2015 to 2025
$37.4M
WS No. 9 Health Eating Activity and Lifestyle StudyN01PC35139 · NCI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI DEAPEN, DENNIS M. · 2007 to 2010
$8.6M
WS No. 12 Patterns of Care DX Year 2008N01PC35137 · NCI · UNIVERSITY OF HAWAII AT MANOA · PI GOODMAN, MARC T · 2007 to 2009
$2.7M
NCI NIH HHS N01 PC035137NCI NIH HHS N01 PC035139NCI NIH HHS N01PC35137NCI NIH HHS N01PC35139NCI NIH HHS P30 CA071789NCI NIH HHS U01 CA164973
6 · The paper itself

Abstract

backgroundThe purpose of this study was to examine if the smoking-related higher breast cancer risk was similar for the five race/ethnicity groups in the Multiethnic Cohort (MEC) study and by oestrogen (ER) and progesterone (PR) receptor status.

methodsFrom 1993 to 2013, we followed 67 313 women who were enrolled in the MEC study at 45-75 years of age. We identified breast cancer cases and tumour receptor status via linkage to the Hawaii and California Surveillance, Epidemiology and End Results Program cancer registries through December 2013. We used Cox proportional hazards regression to estimate multivariable-adjusted hazard ratios with 95% confidence intervals (CI).

resultsDuring a mean follow-up of 16.7 years, we identified 4230 incident, invasive breast cancer cases. Compared with parous never smokers, parous ever smokers who had smoked more than 5 years before their first live childbirth had a higher risk of breast cancer overall of 31% (95% CI: 1.14-1.51). This higher risk was 51% (95% CI: 1.05-2.16) for African Americans, 66% (95% CI: 1.10-2.50) for Native Hawaiians, 42% (95% CI: 1.13-1.78) for Whites, 37% (95% CI: 1.17-1.61) for ER-positive (ER+) tumours and 33% (95% CI: 1.11-1.59) for PR+ tumours. No difference was suggested by racial/ethnic groups (Pheterogeneity = 0.15) or tumour receptor status (Pheterogeneity = 0.60 by ER status and 0.95 by PR status).

conclusionsWe find that the higher breast cancer risk related to smoking is similar across racial/ethnic groups and by ER and PR status, indicating that breast cancer should be considered as a smoking-related cancer.

Indexed as

AgedBlack or African AmericanBreast NeoplasmsCaliforniaEthnicityFemaleHawaiiHumansMiddle AgedProportional Hazards ModelsProspective StudiesReceptors, EstrogenReceptors, ProgesteroneRegistriesRisk FactorsSEER ProgramReceptors, EstrogenReceptors, ProgesteroneBreast cancercohort studiesER positive tumoursethnic differenceshormone receptor tumoursMultiethnic Cohort studynon-alcohol drinkersPR positive tumourssmokingsmoking duration before first childbirth

Identifiers

PMID30668861
PMCPMC6469313

What OpenQuestion holds

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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.