Evidence map›Paper›PMID 38740969›Full record

ArticleBritish journal of cancer2024

Menopausal hormone therapy and breast cancer risk: a population-based cohort study of 1.3 million women in Norway.

Nathalie C Støer, Siri Vangen, Deependra Singh, Renée T Fortner, Solveig Hofvind, Giske Ursin, Edoardo Botteri

Erratum issuedAbstract read
In one paragraph

Article in British journal of cancer, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing 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

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

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Nathalie C StøerDepartment of Research, Cancer Registry of Norway, Norwegian Institute of Public Health, Oslo, Norway. nacst@kreftregisteret.no.ORCID 0000-0001-8994-9332
Siri VangenNorwegian Research Centre for Women's Health, Division of Obstetrics and Gynecology, Oslo University Hospital, Oslo, Norway.ORCID 0000-0003-4681-4774
Deependra SinghNorwegian Research Centre for Women's Health, Division of Obstetrics and Gynecology, Oslo University Hospital, Oslo, Norway.
Renée T FortnerDepartment of Research, Cancer Registry of Norway, Norwegian Institute of Public Health, Oslo, Norway.ORCID 0000-0002-1426-8505
Solveig HofvindSection for Breast Cancer Screening, Cancer Registry of Norway, Norwegian Institute of Public Health, Oslo, Norway.ORCID 0000-0003-0178-8939
Giske UrsinCancer Registry of Norway, Norwegian Institute of Public Health, Oslo, Norway.
Edoardo BotteriDepartment of Research, Cancer Registry of Norway, Norwegian Institute of Public Health, Oslo, Norway.

Funding

World Health Organization 001
6 · The paper itself

Abstract

backgroundIt is important to monitor the association between menopausal hormone therapy (HT) use and breast cancer (BC) risk with contemporary estimates, and specifically focus on HT types and new drugs.

methodsWe estimated hazard ratios (HR) of BC risk according to HT type, administration route and individual drugs, overall and stratified by body mass index (BMI), molecular subtype and detection mode, with non-HT use as reference.

resultsWe included 1,275,783 women, 45+ years, followed from 2004, for a median of 12.7 years. Oral oestrogen combined with daily progestin was associated with the highest risk of BC (HR 2.42, 95% confidence interval (CI) 2.31-2.54), with drug-specific HRs ranging from Cliovelle®: 1.63 (95% CI 1.35-1.96) to Kliogest®: 2.67 (2.37-3.00). Vaginal oestradiol was not associated with BC risk. HT use was more strongly associated with luminal A cancer (HR 1.97, 95% CI 1.86-2.09) than other molecular subtypes, and more strongly with interval (HR 2.00, 95% CI: 1.83-2.30) than screen-detected (HR 1.33, 95% CI 1.26-1.41) BC in women 50-71 years. HRs for HT use decreased with increasing BMI.

conclusionsThe use of oral and transdermal HT was associated with an increased risk of BC. The associations varied according to HT type, individual drugs, molecular subtype, detection mode and BMI.

Indexed as

Breast NeoplasmsAgedBody Mass IndexCohort StudiesEstrogen Replacement TherapyEstrogensFemaleHormone Replacement TherapyHumansMenopauseMiddle AgedNorwayProgestinsRisk FactorsEstrogensProgestins

Identifiers

PMID38740969
PMCPMC11231299

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LicenceCC BY
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Registered trials

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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.