Evidence map›Paper›PMID 34794511›Full record

ArticleBreast cancer research : BCR2021

Excess risk of male breast cancer in the Norwegian Offshore Petroleum Workers (NOPW) cohort: a possible link to extreme night shift work?

Fei-Chih Liu, Marit B Veierød, Kristina Kjærheim, Trude E Robsahm, Reza Ghiasvand, Ronnie Babigumira, Nita K Shala, Leon A M Berge, Giske Ursin, Tom K Grimsrud and 1 more

Open access · goldAbstract readLetter
PubMed Full text at PMC Publisher
In one paragraph

Article in Breast cancer research : BCR, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
0.2field-weighted citation impact, top 39% 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

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 5 citations in OpenAlex.

  1. Pooled it
  2. Light pollution: environmental and health impacts at high latitudes.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2026
    Review
  3. Article
  4. Article
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

11 authors at 4 institutions in 2 countries.

Fei-Chih LiuDepartment of Research, Cancer Registry of Norway, Majorstuen, P.O. Box 5313, 0304, Oslo, Norway. Fei-Chih.Liu@kreftregisteret.no.ORCID 0000-0002-3361-3394
Marit B VeierødDepartment of Biostatistics, Oslo Centre for Biostatistics and Epidemiology, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway.
Kristina KjærheimDepartment of Research, Cancer Registry of Norway, Majorstuen, P.O. Box 5313, 0304, Oslo, Norway.
Trude E RobsahmDepartment of Research, Cancer Registry of Norway, Majorstuen, P.O. Box 5313, 0304, Oslo, Norway.
Reza GhiasvandDepartment of Research, Cancer Registry of Norway, Majorstuen, P.O. Box 5313, 0304, Oslo, Norway.
Ronnie BabigumiraDepartment of Research, Cancer Registry of Norway, Majorstuen, P.O. Box 5313, 0304, Oslo, Norway.
Nita K ShalaDepartment of Research, Cancer Registry of Norway, Majorstuen, P.O. Box 5313, 0304, Oslo, Norway.
Leon A M BergeDepartment of Research, Cancer Registry of Norway, Majorstuen, P.O. Box 5313, 0304, Oslo, Norway.
Giske UrsinCancer Registry of Norway, Oslo, Norway.
Tom K GrimsrudDepartment of Research, Cancer Registry of Norway, Majorstuen, P.O. Box 5313, 0304, Oslo, Norway.
Jo S StenehjemDepartment of Research, Cancer Registry of Norway, Majorstuen, P.O. Box 5313, 0304, Oslo, Norway.
University of Oslo · NOCancer Registry of Norway · NOOslo University Hospital · NOUniversity of Southern California · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Indexed as

PetroleumBreast Neoplasms, MaleHumansMaleNorwayOccupational DiseasesOil and Gas IndustryProportional Hazards ModelsRiskShift Work SchedulePetroleumCohortMale breast cancerNight shift workPetroleum workers

Identifiers

PMID34794511
PMCPMC8600808
OpenAlexW3212856084

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.