Availability and accuracy of occupation in cancer registry data among Florida firefighters
Open accessAbstract
OBJECTIVES: Occupational exposures significantly contribute to the risk of adverse cancer outcomes, and firefighters face many carcinogenic exposures. Occupational research using cancer registry data, however, is limited by missing and inaccurate occupation-related fields. The objective of this study is to determine the frequency and predictors of missing and inaccurate occupation data for a cohort of career firefighters in a state cancer registry. METHODS: We conducted a linkage between data from the Florida Cancer Data System (1981-2014) and the Florida State Fire Marshal's Office (1972-2012). The percentage and the odds of having a firefighting-related occupation code in the cancer record were calculated, adjusting for other occupation and cancer-related factors. RESULTS: Among 3,928 career firefighters, nearly half (47%) were missing a registry-dervived occupation code and only 17% had a firefighting-related code. Males were more likely to have a firefighting-related code (OR = 2.31;95%CI: 1.41-3.76), as were those with more recent diagnoses (OR1992-2002 = 2.98;95%CI: 1.57-5.67; OR2003-2014 = 11.40;95%CI: 6.17-21.03), and those of younger ages (OR45-64y = 1.26;95%CI: 1.03-1.54; OR20-44y = 2.26;95%CI: 1.73-2.95). CONCLUSIONS: Accurate occupation data is key for identifying increased risk of advserse cancer outcomes. Cancer registry occupation fields, however, are overwhelmingly missing for firefighters and are missing disproportionally by sociodemographic and diagnosis characteristics. This study highlights the lack of accurate occupation data available for hypothesis-driven cancer research. Cancer registry linkage with external occupational data sources represents an essential resource for conducting studies among at-risk populations such as firefighters.
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Four studies found that occupational data were not missing at random and that male patients were more likely to have occupational information in their record.
“Four studies found that data were not missing at random and that male patients were more likely to have occupational information in their record.60,62–64”
From The quality of social determinants data in the electronic health record: a systematic review (2021) · cites this paper as [60]
The Discussion (page not specified) says occupation fields are missing disproportionately by case characteristics, including gender. The Results (page not specified) find that male Florida firefighters were more likely to have a firefighting-related occupation code, but do not establish that male patients generally were more likely to have any occupational information in their records. (LLM, conf=0.84)
Experimental — accuracy not yet measuredThe NIOSH Industry and Occupation Computerized Coding System, a free web-based system, was evaluated and recommended by several studies for increasing the quality of occupation data prior to analysis.
“For researchers seeking to increase the quality of occupation data prior to analysis, the National Institute of Occupational Safety and Health (NIOSH) has created a free, web-based system called NIOSH Industry and Occupation Computerized Coding System78 that was evaluated and recommended by several studies.10,60,62,76”
From The quality of social determinants data in the electronic health record: a systematic review (2021) · cites this paper as [60]
The Discussion (page unavailable) describes NIOCCS as a web-based tool and reports that an eight-state study found it useful for improving occupation fields. It also calls such tools valuable, but this paper did not itself evaluate NIOCCS, and it cautions that the tool cannot remedy missing occupation information. (LLM, conf=0.86)
Experimental — accuracy not yet measuredSix of the 7 studies (86%) that looked at the quality of occupational data primarily examined completeness, all noting that occupational information is frequently missing from the health record.
“Six of the 7 studies (86%) that looked at the quality of occupational data primarily examined completeness, all noting that occupational information is frequently missing from the health record.10,60–64”
From The quality of social determinants data in the electronic health record: a systematic review (2021) · cites this paper as [60]
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Flagged first, then by citations
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Cited by
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The quality of social determinants data in the electronic health record: a systematic review
Cook, L. A., Sachs, J., & Weiskopf, N. G. (2021) · Journal of the American Medical Informatics Association · doi:10.1093/jamia/ocab199 · Cited by 153 · see citing works
“For researchers seeking to increase the quality of occupation data prior to analysis, the National Institute of Occupational Safety and Health (NIOSH) has created a free, web-based system called NIOSH Industry and Occupation Computerized Coding System(78) that was evaluated and recommended by several studies.(10,60,62…”
MethodLee, D. J., Koru‐Sengul, T., Hernandez, M. N., Caban-Martinez, A. J., McClure, L. A., MacKinnon, J., & Kobetz, E. N. (2020) · American Journal of Industrial Medicine · doi:10.1002/ajim.23086 · Cited by 79 · see citing works
Self-citationPerceptions of Work-related Health and Cancer Risks among Women Firefighters: A Qualitative Study
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Self-citationMcClure, L. A., Koru-Sengul, T., Hernandez, M., Caban-Martinez, A., Kobetz, E., & Lee, D. J. (2020) · American Journal of Industrial Medicine · doi:10.1002/ajim.23205 · Cited by 5 · see citing works
Self-citationMartínez-Jarreta, B., Majery, N., Bulat, P., Jungewelter, S., Pauncu, E., Weigel, D., Bubaš, M., Skerjanc, A., Vanadziņš, I., Eglīte, M., et al. (2020) · International Journal of Environmental Research and Public Health · doi:10.3390/ijerph17072279 · Cited by 5 · see citing works
“Even though there is knowledge of workplace exposure to carcinogens, there is a lack of empirical evidence about how this plays out in the workforce [5].”
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“They reported approximately 53% of occupational code were available to enable classification of workers into detailed occupations [26].”
Olivo-Marston, S., Singh, S., Hood, R. B., & Adetona, O. (2024) · BMJ public health · doi:10.1136/bmjph-2023-000471 · Cited by 2 · see citing works
“All authors approve of the final version of the manuscript and agree to be accountable for all aspects of the work.”
Ogunsina, K., Koru-Sengul, T., Rodríguez, V., Caban-Martinez, A., Schaefer-Solle, N., Ahn, S., Kobetz, E., Hernandez, M., & Lee, D. J. (2022) · BMC Endocrine Disorders · doi:10.1186/s12902-022-01104-5 · Cited by 2
Self-citationBig data on Occupational Health: how far are we?
Fagundes, T. P., Wichmann, R. M., Silva, M. E. D. L. E., & de Oliveira, T. A. (2024) · Revista Brasileira de Saúde Ocupacional · doi:10.1590/2317-6369/40522en2024v49edcinq11 · Cited by 2 · see citing works
“The researchers compared the rates of positive COVID-19 tests among different groups of workers.”
InfluentialAngelon-Gaetz, K., Ikhile, O., Gordon, H., Pearson, M., & Rao, C. (2024) · North Carolina Medical Journal · doi:10.18043/001c.121418 · Cited by 1
“However, Florida’s cancer registry recently reported on the challenges of I/O reporting among firefighters, especially female firefighters [13].”
Lung cancer survival among Florida male firefighters
Koru-Sengul, T., Pinheiro, P., Zhao, W., Hernandez, M., Hernandez, D. R., Maggioni, A., Kobetz, E., Caban-Martinez, A., & Lee, D. J. (2023) · Frontiers in Oncology · doi:10.3389/fonc.2023.1155650 · Cited by 1
“Participants of the National Program of Cancer Registries (NPCR) collect information about the patients (29, 30).”
BackgroundSelf-citationBig data em Saúde do Trabalhador: o quão distantes estamos?
Fagundes, T. P., Wichmann, R. M., Silva, M. E. D. L. E., & de Oliveira, T. A. (2024) · Revista Brasileira de Saúde Ocupacional · doi:10.1590/2317-6369/40522pt2024v49edcinq11 · Cited by 1 · see citing works
Siegel, M. R., Mayer, A. C., Fent, K., & Wilkinson, A. F. (2026) · American Journal of Industrial Medicine · doi:10.1002/ajim.70112
Topazian, R. J., Wec, A., Ali, J., Frattaroli, S., & Crifasi, C. (2026) · Journal of Medical Internet Research · doi:10.2196/84465
“There are growing calls from fire service leaders, government officials, and researchers to utilize firefighter health and safety data to better understand the hazards of firefighting and design interventions to protect future generations [7-12].”
Topazian, R. J., Locke, P. A., Ali, J., Fattaroli, S., & Crifasi, C. (2026) · New solutions : a journal of environmental and occupational health policy : NS · doi:10.1177/10482911261422422
Colorectal cancer stage at diagnosis in male Florida firefighters
Rothberg, B. G. G., Koru-Sengul, T., Zhao, W., Hernandez, M., Negrón, S., Pinilla, V., Solle, N., Kobetz, E., Pinheiro, P. S., & Lee, D. J. (2025) · JNCI Cancer Spectrum · doi:10.1093/jncics/pkaf107
“39 However, we only identified an additional 1230 service workers, suggesting a high rate of missingness among nonfirefighter service workers.”
Self-citationGoryaev, N. I., Gorbacheva, O. N., & Serebryakov, P. (2024) · Russian Journal of Occupational Health and Industrial Ecology · doi:10.31089/1026-9428-2024-64-12-791-798
Zakharinskaya, O. N., Korchagin, E., Cherkashin, O., Goryaev, D. V., Fadeev, A. G., Serebryakov, P., & Strizhakov, L. (2024) · Russian Journal of Occupational Health and Industrial Ecology · doi:10.31089/1026-9428-2024-64-12-782-790
Distinct Prostate Cancer Survival Outcomes in Firefighters: A Population-Based Study
Pinheiro, P. S., Koru-Sengul, T., Zhao, W., Hernandez, D. R., Hernandez, M., Kobetz, E., Caban-Martinez, A., & Lee, D. J. (2024) · Cancers · doi:10.3390/cancers16071305
Self-citation
- Authors
- McClure, L. A., Koru-Sengul, T., Hernandez, M. N., Mackinnon, J. A., Schaefer Solle, N., Caban-Martinez, A. J., Lee, D. J., & Kobetz, E.
- Affiliations
- University of Miami (US)
- Corresponding author
- Lee, David J.
- Venue
- PLOS ONE
- Publisher
- Public Library of Science (PLoS)
- Published
- 2019-04-30
- Volume
- 14
- Issue
- 4
- Pages
- e0215867
- ISSN
- 1932-6203 (ISSN-L)
- PMC
- PMC6490882
- OpenAlex
- W2943498305
- Cited by
- 23
- References
- 17
- Citations by year
- 2026: 3 · 2025: 2 · 2024: 7 · 2023: 2 · 2022: 4 · 2021: 2 · 2020: 3
- FWCI
- 4.80
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- PLoS ONE (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- RePEc: Research Papers in Economics (submittedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- Florida Department of Health
- National Institutes of Health (UL1TR002736)
- National Center for Advancing Translational Sciences
- State of Florida
- Topics
- Health Sciences › Health Professions › Occupational Therapy › Occupational Health and Performance
- Health Sciences › Medicine › Oncology › Global Cancer Incidence and Screening
- Health Sciences › Health Professions › Health Information Management › Medical Coding and Health Information
- Keywords
- firefighters, cancer registry data quality, occupational exposure, cancer registry linkage, occupational cancer
- MeSH terms
- Adult, Aged, Female, Florida, Humans, Male, Middle Aged, Neoplasms, Registries, Multivariate Analysis, Logistic Models, Occupational Exposure, Young Adult, Firefighters
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