Evidence map›Paper›PMID 33730079›Full record

ArticlePloS one2021

Geographical and socioeconomic inequalities in female breast cancer incidence and mortality in Iran: A Bayesian spatial analysis of registry data.

Shadi Rahimzadeh, Beata Burczynska, Alireza Ahmadvand, Ali Sheidaei, Sara Khademioureh, Forough Pazhuheian, Sahar Saeedi Moghaddam, James Bentham, Farshad Farzadfar, Mariachiara Di Cesare

Abstract read
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  19. Factors related to clinical breast examination: A cross-sectional study.Journal of family medicine and primary care · 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

10 authors.

Shadi RahimzadehDepartment of Natural Science, School of Science and Technology, Middlesex University, London, United Kingdom.
Beata BurczynskaDepartment of Natural Science, School of Science and Technology, Middlesex University, London, United Kingdom.
Alireza AhmadvandSchool of Medicine, Griffith University, Gold Coast, Queensland, Australia.ORCID 0000-0001-5568-8787
Ali SheidaeiDepartment of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Sara KhademiourehECO College of Insurance, Allameh Tabataba'i University, Tehran, Iran.
Forough PazhuheianNon-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
Sahar Saeedi MoghaddamNon-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
James BenthamSchool of Mathematics, Statistics and Actuarial Science, University of Kent, Canterbury, United Kingdom.
Farshad FarzadfarNon-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
Mariachiara Di CesareDepartment of Natural Science, School of Science and Technology, Middlesex University, London, United Kingdom.ORCID 0000-0002-3934-3364

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn Iran, trends in breast cancer incidence and mortality have generally been monitored at national level. The purpose of this study is to examine province-level disparities in age-standardised breast cancer incidence versus mortality from 2000 to 2010 and their association with socioeconomic status.

methodsIn this study, data from Iran's national cancer and death registry systems, and covariates from census and household expenditure surveys were used. We estimated the age-standardised incidence and mortality rates in women aged more than 30 years for all 31 provinces in the consecutive time intervals 2000-2003, 2004-2007 and 2008-2010 using a Bayesian spatial model.

resultsMean age-standardised breast cancer incidence across provinces increased over time from 15.0 per 100,000 people (95% credible interval 12.0,18.3) in 2000-2003 to 39.6 (34.5,45.1) in 2008-2010. The mean breast cancer mortality rate declined from 10.9 (8.3,13.8) to 9.9 (7.5,12.5) deaths per 100,000 people in the same period. When grouped by wealth index quintiles, provinces in the highest quintile had higher levels of incidence and mortality. In the wealthiest quintile, reductions in mortality over time were larger than those observed among provinces in the poorest quintile. Relative breast cancer mortality decreased by 16.7% in the highest quintile compared to 10.8% in the lowest quintile.

conclusionsBreast cancer incidence has increased over time, with lower incidence in the poorest provinces likely driven by underdiagnoses or late-stage diagnosis. Although the reported mortality rate is still higher in wealthier provinces, the larger decline over time in these provinces indicates a possible future reversal, with the most deprived provinces having higher mortality rates. Ongoing analysis of incidence and mortality at sub-national level is crucial in addressing inequalities in healthcare systems and public health both in Iran and elsewhere.

Indexed as

Health Status DisparitiesPoverty AreasAdultBayes TheoremBreast NeoplasmsFemaleGeographyHumansIncidenceIranMortalityNeoplasm StagingRegistries

Identifiers

PMID33730079
PMCPMC7968648

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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.