Evidence map›Paper›PMID 35166068›Full record

ArticleCancer medicine2022

Socioeconomic status and risk of lung cancer by histological subtype in the Nordic countries.

Margherita Pizzato, Jan Ivar Martinsen, Sanna Heikkinen, Jerome Vignat, Elsebeth Lynge, Pär Sparén, Carlo La Vecchia, Eero Pukkala, Salvatore Vaccarella

Abstract read
In one paragraph

Article in Cancer medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–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

15 citing papers in PubMed.

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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

9 authors.

Margherita PizzatoDepartment of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy.ORCID 0000-0002-0340-0435
Jan Ivar MartinsenDepartment of Research, Cancer Registry of Norway, Oslo, Norway.
Sanna HeikkinenFinnish Cancer Registry, Helsinki, Finland.ORCID 0000-0001-9995-5605
Jerome VignatInternational Agency for Research on Cancer, Lyon, France.
Elsebeth LyngeNykøbing Falster Hospital, University of Copenhagen, Denmark.
Pär SparénDepartment of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm.
Carlo La VecchiaDepartment of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy.
Eero PukkalaFinnish Cancer Registry, Institute for Statistical and Epidemiological Cancer Research, Helsinki, Finland.ORCID 0000-0001-9536-6440
Salvatore VaccarellaInternational Agency for Research on Cancer, Lyon, France.

Funding

World Health Organization 001
6 · The paper itself

Abstract

backgroundWhile the excess in lung cancer risk among lower socioeconomic status individuals has been widely described, the magnitude of this association across lung cancer subtypes, as well as histotype-related long-term incidence trends, are inconclusively reported.

aimsWe explored the variation in the incidence of the three main lung cancer histotypes (i.e. squamous cell carcinoma, small cell carcinoma and adenocarcinoma) by socioeconomic status (SES, i.e. upper and lower white collar, upper and lower blue collar, and farming/forestry/fishing) in the adult population of four Nordic countries (i.e. Sweden, Norway, Finland and Denmark). MATERIALS &

methodsWe have used data from the Nordic Occupational Cancer Study (NOCCA), computing age-standardized incidence rates per 100,000 person-years truncated at ages 50-69 years, by sex, histotype, country and SES, for the period 1971-2005. We estimated relative risks and the corresponding 95% confidence intervals through Poisson regression models, including terms for SES, age, sex and country, as indicated.

resultsA clear socioeconomic gradient, with a progressive increase in lung cancer risk as SES level decreases, was observed in all subtypes and in both sexes. Favourable lung cancer incidence trends were seen among men for squamous cell and small cell carcinomas, although for adenocarcinomas rates were increasing everywhere except for Finland. Among women, upward temporal trends were seen in all SES groups and for all subtypes, although rates increased to a greater extent for low, compared to high, SES, especially in Denmark and Norway. Farmers showed comparatively lower risks compared to other SES categories. DISCUSSION: This prospective cohort study shows that substantial socioeconomic inequalities in the incidence of the most important lung cancer histotypes exist in the Nordic Countries, and that these inequalities are on the rise, especially among women.

conclusionSmoking habits are likely to largely explain the observed social gradient for lung cancer histotypes in both sexes.

Indexed as

AdenocarcinomaLung NeoplasmsAdultAgedFemaleHumansIncidenceMaleMiddle AgedProspective StudiesScandinavian and Nordic CountriesSocial Classlung cancerNordic countriessocioeconomic status

Identifiers

PMID35166068
PMCPMC9041078

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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.