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Kyrönlahti A, Erdmann F, Feychting M, Frederiksen LE, Hirvonen E, Korhonen LM, Krøyer A, Mader L, Malila N, Mogensen H, Pedersen C, Talbäck M, Taskinen M, Winther JF, Madanat‐Harjuoja L, Pitkäniemi J. Income disparities between adult childhood cancer survivors and their peers-A register-based cohort study from the SALiCCS research programme. Cancer Med 2023; 12:16455-16468. [PMID: 37305982 PMCID: PMC10469706 DOI: 10.1002/cam4.6218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 04/20/2023] [Accepted: 05/30/2023] [Indexed: 06/13/2023] Open
Abstract
BACKGROUND Childhood cancer survivors face various adverse consequences. This Nordic register-based cohort study aimed to assess whether survivors of childhood cancer are more likely to have low income than their peers. METHODS We identified 17,392 childhood cancer survivors diagnosed at ages 0 to 19 between 1971 and 2009 with 83,221 age-, sex-, and country-matched population comparisons. Annual disposable income at ages 20 to 50 years was retrieved from statistical offices (for 1990-2017) and categorized into low income and middle/high income. The number of transitions between income categories were assessed using binomial regression analyses. RESULTS The prevalence of annual low income among childhood cancer survivors was 18.1% and 15.6% among population comparisons (risk ratio [RR] 1.17; 95% confidence interval [CI] 1.16-1.18). Compared to population comparisons, childhood cancer survivors were 10% (95% CI 8%-11%) less likely to transition from low to middle/high income and 12% (10%-15%) more likely to transition from middle/high to low income during follow-up. Among those initially in the low income category, survivors were 7% (95% CI 3%-11%) more likely to remain in the low income category. If the initial category was middle/high income, childhood cancer survivors were 10% (95% CI 8%-11%) less likely to remain in the middle/high income and 45% (37%-53%) more likely to transition to the low income category permanently. CONCLUSIONS Childhood cancer survivors are at higher risk for low income in adulthood than their peers. These disparities might be reduced by continued career counseling along with support in managing within the social security system.
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Affiliation(s)
- Anniina Kyrönlahti
- Finnish Cancer RegistryHelsinkiFinland
- Children and AdolescentsHelsinki University Hospital and University of HelsinkiHelsinkiFinland
| | - Friederike Erdmann
- Childhood Cancer Research GroupDanish Cancer Society Research CenterCopenhagenDenmark
- Division of Childhood Cancer EpidemiologyInstitute of Medical Biostatistics, Epidemiology, and Informatics (IMBEI), University Medical Center of the Johannes Gutenberg University MainzGermany
- Department of Prevention and EvaluationLeibniz Institute for Prevention Research and Epidemiology – BIPSBremenGermany
| | - Maria Feychting
- Unit of EpidemiologyInstitute of Environmental Medicine, Karolinska InstitutetStockholmSweden
| | | | | | - Liisa Maria Korhonen
- Finnish Cancer RegistryHelsinkiFinland
- Children and AdolescentsHelsinki University Hospital and University of HelsinkiHelsinkiFinland
| | - Anja Krøyer
- Childhood Cancer Research GroupDanish Cancer Society Research CenterCopenhagenDenmark
| | - Luzius Mader
- Childhood Cancer Research GroupDanish Cancer Society Research CenterCopenhagenDenmark
- Childhood Cancer Research GroupInstitute of Social and Preventive Medicine, University of BernBernSwitzerland
- Cancer Registry Bern‐SolothurnUniversity of BernBernSwitzerland
| | | | - Hanna Mogensen
- Unit of EpidemiologyInstitute of Environmental Medicine, Karolinska InstitutetStockholmSweden
| | - Camilla Pedersen
- Childhood Cancer Research GroupDanish Cancer Society Research CenterCopenhagenDenmark
| | - Mats Talbäck
- Unit of EpidemiologyInstitute of Environmental Medicine, Karolinska InstitutetStockholmSweden
| | - Mervi Taskinen
- Children and AdolescentsHelsinki University Hospital and University of HelsinkiHelsinkiFinland
- Division of Pediatric Hematology, Oncology, and Stem Cell TransplantationHelsinki University HospitalHelsinkiFinland
| | | | - Laura Madanat‐Harjuoja
- Finnish Cancer RegistryHelsinkiFinland
- Dana Farber/Boston Children's Cancer and Blood Disorders ClinicBostonMassachusettsUSA
| | - Janne Pitkäniemi
- Finnish Cancer RegistryHelsinkiFinland
- Health Sciences Unit, Faculty of Social SciencesTampere UniversityTampereFinland
- Department of Public Health, Faculty of MedicineUniversity of HelsinkiHelsinkiFinland
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Erdmann F, Frederiksen LE, Mogensen H, Pedersen C, Mader L, Talbäck M, Bautz A, Hirvonen E, Kyrönlahti A, Korhonen LM, Hasle H, Malila N, Madanat-Harjuoja LM, Feychting M, Winther JF. Cohort Profile: The Socioeconomic Consequences in Adult Life After Childhood Cancer in Scandinavia (SALiCCS) Research Programme. Front Oncol 2021; 11:752948. [PMID: 34900702 PMCID: PMC8662544 DOI: 10.3389/fonc.2021.752948] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 10/26/2021] [Indexed: 12/27/2022] Open
Abstract
INTRODUCTION The growing number of survivors of childhood cancer, with many years of life ahead, demonstrates the increasing clinical and public health relevance of investigating the risks of social and socioeconomic impairment after a childhood cancer diagnosis and the life-saving treatment. To enrich understanding of the mental, social and socioeconomic difficulties that childhood cancer survivors may face during their life-course, identify particularly vulnerable survivors and overcome the limitations of previous research, we initiated the Socioeconomic Consequences in Adult Life after Childhood Cancer in Scandinavia (SALiCCS) research programme. METHODS This Nordic cross-border research programme is a collaboration between the Danish Cancer Society, the Finnish Cancer Registry and Karolinska Institutet to investigate a broad range of mental, social and socioeconomic conditions in long-term childhood cancer survivors in Denmark, Finland and Sweden. SALiCCS is based on a registry-based matched cohort design, comprising five-year survivors of cancer diagnosed at ages 0-19 years (1971-2008 in Denmark, 1971-2009 in Finland, 1971-2011 in Sweden), age-, sex- and country-matched population comparisons and sibling comparisons who were followed over time. Outcomes of interest included mental disorders, educational achievements, employment and profession, family life and the need of social security benefits. Individual-level data linkage among various national registries provided the data for the research programme. RESULTS The SALiCCS core population comprises 21,292 five-year survivors, 103,303 population comparisons and 29,644 siblings as a second comparison group. The most common diagnoses in survivors were central nervous system tumours, leukaemias and lymphomas. DISCUSSION SALiCCS is the largest, most comprehensive population-based research initiative in this field, based on high-quality registry data with minimal risk of bias. The findings will be informative for evidence-based survivorship care targeting not only somatic late effects but also psychosocial impairments.
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Affiliation(s)
- Friederike Erdmann
- Childhood Cancer Research Group, Danish Cancer Society Research Center, Copenhagen, Denmark
- Division of Childhood Cancer Epidemiology, Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI), Johannes Gutenberg University Mainz, Mainz, Germany
| | | | - Hanna Mogensen
- Unit of Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Camilla Pedersen
- Childhood Cancer Research Group, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Luzius Mader
- Childhood Cancer Research Group, Danish Cancer Society Research Center, Copenhagen, Denmark
- Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland
| | - Mats Talbäck
- Unit of Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Andrea Bautz
- Childhood Cancer Research Group, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Elli Hirvonen
- Institute for Statistical and Epidemiological Cancer Research, Finnish Cancer Registry, Helsinki, Finland
| | - Anniina Kyrönlahti
- Institute for Statistical and Epidemiological Cancer Research, Finnish Cancer Registry, Helsinki, Finland
- New Children’s Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Liisa Maria Korhonen
- Institute for Statistical and Epidemiological Cancer Research, Finnish Cancer Registry, Helsinki, Finland
- New Children’s Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Henrik Hasle
- Department of Paediatrics, Aarhus University Hospital, Aarhus, Denmark
| | - Nea Malila
- Institute for Statistical and Epidemiological Cancer Research, Finnish Cancer Registry, Helsinki, Finland
| | - Laura-Maria Madanat-Harjuoja
- Institute for Statistical and Epidemiological Cancer Research, Finnish Cancer Registry, Helsinki, Finland
- Dana Farber Cancer Institute/Boston Children’s Cancer and Blood Disorders Center, Harvard Medical School, Boston, MA, United States
| | - Maria Feychting
- Unit of Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Jeanette Falck Winther
- Childhood Cancer Research Group, Danish Cancer Society Research Center, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health, Aarhus University and Aarhus University Hospital, Aarhus, Denmark
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