open access
Socioeconomic factors and suicide risk in Polish cancer patients – a population-based cohort study exploring associations and implications


- Polish National Cancer Registry, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
- Harvard Business School, Harvard University, Boston, MA, USA
open access
Abstract
Introduction. This study aimed to explore socioeconomic factors influencing suicide rate in Polish cancer patients.
Material and methods. Data on cancer cases and socioeconomic covariates were obtained from the Polish National Cancer Registry and Statistics Poland. Suicide rates were calculated for each year. Multivariable linear regression analyses explored associations between unemployment, income, university education, access to physicians overall and to psychiatry hospitals, and suicide incidence.
Results. The study included 1.43 million cancer patients diagnosed between 2009 and 2019. Among them, 830 suicides were identified, with higher rates among men. Income per capita and higher education degrees were significant predictors of suicide among male cancer patients (p = 0.05 and 0.01, respectively). However, no significant associations were found for female cancer patients. The regression models explained 13% of the variation in male suicide incidence.
Conclusions. Lower income and higher education increase suicide risk in male cancer patients, highlighting the need for targeted interventions.
Abstract
Introduction. This study aimed to explore socioeconomic factors influencing suicide rate in Polish cancer patients.
Material and methods. Data on cancer cases and socioeconomic covariates were obtained from the Polish National Cancer Registry and Statistics Poland. Suicide rates were calculated for each year. Multivariable linear regression analyses explored associations between unemployment, income, university education, access to physicians overall and to psychiatry hospitals, and suicide incidence.
Results. The study included 1.43 million cancer patients diagnosed between 2009 and 2019. Among them, 830 suicides were identified, with higher rates among men. Income per capita and higher education degrees were significant predictors of suicide among male cancer patients (p = 0.05 and 0.01, respectively). However, no significant associations were found for female cancer patients. The regression models explained 13% of the variation in male suicide incidence.
Conclusions. Lower income and higher education increase suicide risk in male cancer patients, highlighting the need for targeted interventions.
Keywords
cancer; suicide; risk; epidemiology; cohort study


Title
Socioeconomic factors and suicide risk in Polish cancer patients – a population-based cohort study exploring associations and implications
Journal
Nowotwory. Journal of Oncology
Issue
Article type
Research paper (original)
Published online
2023-08-21
Page views
44
Article views/downloads
22
DOI
Keywords
cancer
suicide
risk
epidemiology
cohort study
Authors
Irmina M. Michałek
Florentino Luciano Caetano dos Santos
Urszula Wojciechowska
Joanna Didkowska


- Stack S. Contributing factors to suicide: Political, social, cultural and economic. Prev Med. 2021; 152(Pt 1): 106498.
- Milner A, McClure R, De Leo D. Socio-economic determinants of suicide: an ecological analysis of 35 countries. Soc Psychiatry Psychiatr Epidemiol. 2012; 47(1): 19–27.
- Ying YH, Chang K. A study of suicide and socioeconomic factors. Suicide Life Threat Behav. 2009; 39(2): 214–226.
- Yang J, Liu Q, Zhao F, et al. Incidence of and sociological risk factors for suicide death in patients with leukemia: A population-based study. J Int Med Res. 2020; 48(5): 300060520922463.
- Michalek IM, Caetano Dos Santos FL, Wojciechowska U, et al. Suicide risk among adolescents and young adults after cancer diagnosis: analysis of 34 cancer groups from 2009 to 2019. J Cancer Surviv. 2023; 17(3): 657–662.
- Michalek IM, Caetano Dos Santos FL, Wojciechowska U, et al. Risk of suicide in patients with cancer aged 75 years or more - Follow-up of over 400,000 individuals. Maturitas. 2023; 175: 107785.
- Didkowska J, Wojciechowska U, Michalek IM, et al. Cancer incidence and mortality in Poland in 2019. Sci Rep. 2022; 12(1): 10875.
- Vandenbroucke JP, von Elm E, Altman DG, et al. STROBE Initiative. Strengthening the Reporting of Observational Studies in Epidemiology (STROBE): explanation and elaboration. PLoS Med. 2007; 4(10): e297.
- Suk R, Hong YR, Wasserman RM, et al. Analysis of Suicide After Cancer Diagnosis by US County-Level Income and Rural vs Urban Designation, 2000-2016. JAMA Netw Open. 2021; 4(10): e2129913.