Evidence map›Paper›PMID 30014030›Full record

ArticleSSM - population health2018

Occupational inequalities in female cancer incidence in Japan: Hospital-based matched case-control study with occupational class.

Masayoshi Zaitsu, Rena Kaneko, Takumi Takeuchi, Yuzuru Sato, Yasuki Kobayashi, Ichiro Kawachi

Open access · goldAbstract read
In one paragraph

Article in SSM - population health, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.2field-weighted citation impact, top 9% 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

23 citing papers in PubMed, 37 citations in OpenAlex.

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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 at 2 institutions in 2 countries.

Masayoshi ZaitsuDepartment of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, USA.
Rena KanekoDepartment of Public Health, Graduate School of Medicine, The University of Tokyo, Japan.
Takumi TakeuchiDepartment of Urology, Kanto Rosai Hospital, Japan.
Yuzuru SatoDepartment of Gastroenterology, Kanto Rosai Hospital, Japan.
Yasuki KobayashiDepartment of Public Health, Graduate School of Medicine, The University of Tokyo, Japan.
Ichiro KawachiDepartment of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, USA.
Harvard University · USTokyo Metropolitan Institute of Public Health · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSocioeconomic inequalities in female cancer incidence have previously been undocumented in Japan.

methodsUsing a nationwide inpatient dataset (1984-2016) in Japan, we identified 143,806 female cancer cases and 703,157 controls matched for sex, age, admission date, and admitting hospital, and performed a hospital-based matched case-control study. Based on standardized national classification, we categorized patients' socioeconomic status (SES) by occupational class (blue-collar, service, professional, manager), cross-classified by industry sector (blue-collar, service, white-collar). Using blue-collar workers in blue-collar industries as the reference group, we estimated the odds ratio (OR) for each cancer incidence using conditional logistic regression with multiple imputation, adjusted for major modifiable risk factors (smoking, alcohol consumption).

resultsWe identified lower risks among higher-SES women for common and overall cancers: e.g., ORs for managers in blue-collar industries were 0.67 (95% confidence interval [CI], 0.46-0.98) for stomach cancer and 0.40 (95% CI, 0.19-0.86) for lung cancer. Higher risks with higher SES were evident for breast cancer: the OR for professionals in service industries was 1.60 (95% CI, 1.29-1.98). With some cancers, homemakers showed a similar trend to subjects with higher SES; however, the magnitude of the OR was weaker than those with higher SES.

conclusionsEven after controlling for major modifiable risk factors, socioeconomic inequalities were evident for female cancer incidence in Japan.

Indexed as

AlcoholCancer incidenceCase-control studyJapanOccupationSmokingSocioeconomic statusWomen

Identifiers

PMID30014030
PMCPMC6019265
OpenAlexW2806290214

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.