Evidence map›Paper›PMID 35354650›Full record

ArticleOccupational and environmental medicine2022

Cancer risk among firefighters and police in the Ontario workforce.

Jeavana Sritharan, Tracy L Kirkham, Jill MacLeod, Niki Marjerrison, Ashley Lau, Mamadou Dakouo, Chloë Logar-Henderson, Tenzin Norzin, Nathan L DeBono, Paul A Demers

Open access · hybridAbstract read
In one paragraph

Article in Occupational and environmental medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
10.4field-weighted citation impact, top 1% 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

14 citing papers in PubMed, 22 citations in OpenAlex.

  1. Article
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  3. Development and Evaluation of the Firefighter Exposure to Carcinogens Scale.Journal of occupational and environmental medicine · 2025
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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 at 2 institutions in 2 countries.

Jeavana SritharanOccupational Cancer Research Centre, Ontario Health, Toronto, Ontario, Canada jeavana.sritharan@ontariohealth.ca.ORCID 0000-0001-8228-1632
Tracy L KirkhamOccupational Cancer Research Centre, Ontario Health, Toronto, Ontario, Canada.
Jill MacLeodOccupational Cancer Research Centre, Ontario Health, Toronto, Ontario, Canada.
Niki MarjerrisonOccupational Cancer Research Centre, Ontario Health, Toronto, Ontario, Canada.
Ashley LauOccupational Cancer Research Centre, Ontario Health, Toronto, Ontario, Canada.
Mamadou DakouoOccupational Cancer Research Centre, Ontario Health, Toronto, Ontario, Canada.
Chloë Logar-HendersonOccupational Cancer Research Centre, Ontario Health, Toronto, Ontario, Canada.
Tenzin NorzinOccupational Cancer Research Centre, Ontario Health, Toronto, Ontario, Canada.
Nathan L DeBonoOccupational Cancer Research Centre, Ontario Health, Toronto, Ontario, Canada.
Paul A DemersOccupational Cancer Research Centre, Ontario Health, Toronto, Ontario, Canada.
Occupational Cancer Research Centre · CAUniversity of Toronto · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveFirefighters and police often work in high-stress, complex environments with known and suspected carcinogenic exposures. We aimed to characterise cancer incidence among firefighters and police.

methodsThe Occupational Disease Surveillance System (ODSS) was used to identify workers employed as firefighters or police in Ontario. A cohort of workers were identified using lost-time workers' compensation claims data and followed for cancer in the Ontario Cancer Registry (1983-2020). Cox proportional hazard models were used to estimate HRs and 95% CIs for primary site-specific cancer diagnoses adjusted for age at start of follow-up, birth year and sex.

resultsA total of 13 642 firefighters and 22 595 police were identified in the cohort. Compared with all other workers in the ODSS, firefighters and police had increased risk of prostate cancer (firefighters: HR=1.43, 95% CI 1.31 to 1.57; police: HR=1.47, 95% CI 1.35 to 1.59), colon cancer (firefighters: HR=1.39, 95% CI 1.19 to 1.63; police: HR=1.39, 95% CI 1.21 to 1.60) and skin melanoma (firefighters: HR=2.38, 95% CI 1.99 to 2.84; police: HR=2.27, 95% CI 1.96 to 2.62). Firefighters also had increased risk of cancer of the pancreas, testis and kidney, as well as non-Hodgkin's lymphoma and leukaemia. Police had increased risk of thyroid, bladder and female breast cancer. When compared directly with the police, firefighters had an elevated risk of mesothelioma and testicular cancer.

conclusionsFirefighters and police demonstrated some similar as well as some unique cancer risks. Findings from this larger worker population may have important implications for workplace and policy-level changes to improve preventative measures and reduce potential exposures to known carcinogenic hazards.

Indexed as

FirefightersNeoplasmsOccupational DiseasesOccupational ExposureTesticular NeoplasmsFemaleHumansMaleOntarioPoliceWorkforceepidemiologyfirefightersoccupational healthpublic health surveillance

Identifiers

PMID35354650
PMCPMC9304109
OpenAlexW4220762402

What OpenQuestion holds

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LicenceCC BY-NC
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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.