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Everhøj C, Norsker FN, Rechnitzer C, Licht SDF, Nielsen TT, Kjær SK, Jensen A, Hargreave M, Christensen J, Belmonte F, Urhoj SK, Strandberg-Larsen K, Winther JF, Kenborg L. Effects of early maternal cancer and fertility treatment on the risk of adverse birth outcomes. EClinicalMedicine 2022; 46:101369. [PMID: 35399810 PMCID: PMC8987408 DOI: 10.1016/j.eclinm.2022.101369] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Early maternal cancer and fertility treatment each increase the risk for adverse birth outcomes, but the joint effect of these outcomes has not yet been reported. Thus, the aim was to assess the individual and joint effect of maternal cancer and fertility treatment on the risk for adverse birth outcomes. METHODS This population-based cohort study included 5487 live-born singletons identified in the Danish Medical Birth Register (1994-2016) of mothers with previous cancer (<40 years) recorded in the Danish Cancer Registry (1955-2014). We randomly selected 80,262 live-born singletons of mothers with no cancer <40 years matched to mothers with cancer by birth year and month. We calculated odds ratios (ORs) for preterm birth, low birth weight (LBW) (<2500 g) and small for gestational age (SGA), mean differences in birth weight in grams, and additional cases of preterm birth (gestational age<259 days) per 100,000 person-years. Multiplicative and additive interaction of maternal cancer and fertility treatment was compared with outcomes of children conceived naturally to mothers with no maternal cancer (reference group). FINDINGS Among 84,332 live-born singletons, increased ORs for preterm birth were observed among children born to mothers with previous cancer (1·48, 95% confidence interval [CI] 1·33-1.65) or after fertility treatment (1·43, 95% 1·28-1-61), with 22 additional cases of preterm birth among both group of children (95% CI 15-29; 95% CI 14-30). In the joint analyses, the OR for SGA for children born after fertility treatment to mothers with previous cancer was similar to that of the reference group (OR 1·02, 95% CI 0·72-1·44, P for interaction=0·52). Children with both exposures had increased ORs for LBW (1·86, 95% CI 1·17-2·96, P for interaction=0·06) and preterm birth (2·31, 955 CI 1·66-3·20, P for interaction = 0·56), with 61 additional cases of preterm birth (95% CI 27-95, P for interaction=0.26) over that of children in the reference group. The mean birth weight was also lower in children born to mothers with both exposures (-140 g, 95% CI -215; -65) (P for interaction=0.06) but decreased to -22 g (95% CI -76; 31) after adjustment for GA. INTERPRETATION Although we did not find any statistically significant additive interaction between maternal cancer and fertility treatment, children born after fertility treatment of mothers with previous cancer were at increased risk for adverse birth outcomes. Thus, pregnant women with both exposures need close follow-up during pregnancy. FUNDING The Danish Cancer Society and the Danish Childhood Cancer Foundation.
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Affiliation(s)
- Cathrine Everhøj
- Childhood Cancer Research Group, Danish Cancer Society Research Center, Danish Cancer Society, Strandboulevarden 49, Copenhagen 2100, Denmark
| | - Filippa Nyboe Norsker
- Childhood Cancer Research Group, Danish Cancer Society Research Center, Danish Cancer Society, Strandboulevarden 49, Copenhagen 2100, Denmark
| | - Catherine Rechnitzer
- Department of Pediatrics and Adolescent Medicine, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Sofie de Fine Licht
- Childhood Cancer Research Group, Danish Cancer Society Research Center, Danish Cancer Society, Strandboulevarden 49, Copenhagen 2100, Denmark
| | - Thomas T Nielsen
- Childhood Cancer Research Group, Danish Cancer Society Research Center, Danish Cancer Society, Strandboulevarden 49, Copenhagen 2100, Denmark
| | - Susanne K. Kjær
- Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark
- Department of Gynaecology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Allan Jensen
- Lifestyle, Reproduction and Cancer, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Marie Hargreave
- Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Jane Christensen
- Statistics and Data Analysis, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Federica Belmonte
- Statistics and Data Analysis, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Stine Kjaer Urhoj
- Section of Epidemiology, Department of Public Health, University of Copenhagen, Denmark
| | | | - Jeanette F Winther
- Childhood Cancer Research Group, Danish Cancer Society Research Center, Danish Cancer Society, Strandboulevarden 49, Copenhagen 2100, Denmark
- Department of Clinical Medicine, Faculty of Health, Aarhus University and University Hospital, Aarhus, Denmark
| | - Line Kenborg
- Childhood Cancer Research Group, Danish Cancer Society Research Center, Danish Cancer Society, Strandboulevarden 49, Copenhagen 2100, Denmark
- Corresponding author.
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Frederiksen LE, Pedersen C, Mogensen H, Mader L, Bautz A, Talbäck M, Hirvonen E, Norsker FN, Hasle H, Malila N, Madanat-Harjuoja L, Feychting M, Erdmann F, Winther JF. Employment status and occupational positions of childhood cancer survivors from Denmark, Finland and Sweden: A Nordic register-based cohort study from the SALiCCS research programme. Lancet Reg Health Eur 2021; 12:100258. [PMID: 34901911 PMCID: PMC8640515 DOI: 10.1016/j.lanepe.2021.100258] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND A childhood cancer diagnosis and late effects of treatment may affect survivors' possibilities of employment or highly skilled occupations later in life. In this study, we compared the employment and occupational status of childhood cancer survivors with population comparisons and siblings. METHODS In a cohort study based on Nordic registers, we identified 10 461 survivors of childhood cancer diagnosed before age 20 years in Denmark, Finland and Sweden since 1971. Survivors were compared with 48 928 population comparisons matched to survivors by age, sex and geographical region and 12 605 siblings of survivors. Annual outcome information on employment, unemployment, health-related unemployment and occupational position was obtained from the statistical institutes between 1980-2017 and assessed in multivariate logistic regression analyses from age 30 onwards. FINDINGS By 30 years of age, 9.2% (95% CI, 8.6-9.9%) of survivors were unemployed for health reasons. Childhood cancer survivors had considerably higher odds of health-related unemployment at ages 30, 40 and 50 than population comparisons (ORage30, 2.57; 95% CI, 2.35-2.81) and siblings (ORage30, 2.50; 95% CI, 2.15-2.90). We observed no large difference in unemployment unrelated to health or in occupational position. Health-related unemployment was particularly pronounced among survivors of central nervous system tumours and survivors diagnosed below 15 years of age. INTERPRETATION Survivors at risk of health-related unemployment should be offered comprehensive survivorship care and interventions for obtaining and maintaining suitable employment. FUNDING NordForsk [76111], the Danish Childhood Cancer Foundation [2016-0293], Aarhus University [43239402], the Swedish Childhood Cancer Foundation [PR2020-0130] and [OB2019-0003], Tømrermester Jørgen Holm og Hustru Elisa F. Hansens Mindelegat [20088] and the Swiss National Science Foundation to LM [P2LUP3_175288].
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Affiliation(s)
- Line Elmerdahl Frederiksen
- Childhood Cancer Research Group, Danish Cancer Society Research Center, Copenhagen, Denmark,Corresponding author: Line Elmerdahl Frederiksen, PhD, Childhood Cancer Research Group, Danish Cancer Society Research Center, Copenhagen.
| | - Camilla Pedersen
- Childhood Cancer Research Group, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Hanna Mogensen
- Unit of Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - 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
| | - Andrea Bautz
- The Danish Clinical Quality Program – National Clinical Registries, Frederiksberg, Denmark
| | - Mats Talbäck
- Unit of Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | | | | | - Henrik Hasle
- Department of Pediatrics, Aarhus University Hospital, Aarhus, Denmark
| | - Nea Malila
- Finnish Cancer Registry, Helsinki, Finland
| | - Laura Madanat-Harjuoja
- Finnish Cancer Registry, Helsinki, Finland,Dana Farber Cancer Institute/Boston Children's Cancer and Blood Disorders Center, Boston, Massachusetts, USA
| | - Maria Feychting
- Unit of Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - 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), University Medical Center of the Johannes Gutenberg University Mainz, Germany
| | - 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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Pedersen C, Rechnitzer C, Andersen EAW, Kenborg L, Norsker FN, Bautz A, Baad-Hansen T, Tryggvadottir L, Madanat-Harjuoja LM, Holmqvist AS, Hjorth L, Hasle H, Winther JF. Somatic Disease in Survivors of Childhood Malignant Bone Tumors in the Nordic Countries. Cancers (Basel) 2021; 13:cancers13184505. [PMID: 34572734 PMCID: PMC8467516 DOI: 10.3390/cancers13184505] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/02/2021] [Accepted: 09/03/2021] [Indexed: 01/18/2023] Open
Abstract
Simple Summary The treatment of osteosarcoma and Ewing sarcoma, the two major types of malignant bone tumors in children, has progressed considerably during the last decades, with more patients becoming long-term survivors. This improvement has resulted in an increasing number of patients with long-term adverse health consequences from the life-saving treatment. The aim of this study was to provide a detailed, comprehensive overview of somatic diseases that require hospitalization in long-term survivors of osteosarcoma and Ewing sarcoma. This study contributes new insights into the risk of somatic late effects in survivors of osteosarcoma and Ewing sarcoma which are urgently requested by pediatric oncologists, researchers, and by survivors and their families. The study provides an essential basis for the development of preventive intervention strategies and for optimal patient counseling and follow-up care, which all contribute to improving the health and quality of life in survivors. Abstract Survivors of malignant bone tumors in childhood are at risk of long-term adverse health effects. We comprehensively reviewed cases of somatic diseases that required a hospital contact in survivors of osteosarcoma and Ewing sarcoma. In a population-based cohort study, 620 five-year survivors of osteosarcoma (n = 440) or Ewing sarcoma (n = 180), diagnosed before the age of 20 years in Denmark, Finland, Iceland, and Sweden during 1943–2008, were followed in the national hospital registers. Overall rates of hospital contacts for any somatic disease and for 12 main diagnostic groups and 120 specific disease categories were compared with those in a matched comparison cohort (n = 3049) randomly selected from the national population registers. The rate of hospital contact for any somatic disease was 80% higher in survivors of malignant bone tumors than in comparisons and remained elevated up to 30 years after diagnosis. The rate of hospital contacts was higher after Ewing sarcoma (rate ratio (RR) 2.24; 95% confidence interval (CI) 1.76–2.85) than after osteosarcoma (RR 1.67; 95% CI 1.41–1.98). Elevated rates were observed for 11 main diagnostic groups, including infections, second malignant neoplasms, and diseases of the skin, bones, and circulatory, digestive, endocrine, and urinary systems. Survivors of malignant bone tumors in childhood are at increased risk of somatic diseases many years after diagnosis. This comprehensive study contributes new insight into the risk of late effects in survivors of osteosarcoma and Ewing sarcoma, which is an essential basis for optimal patient counseling and follow-up care.
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Affiliation(s)
- Camilla Pedersen
- Danish Cancer Society Research Center, 2100 Copenhagen, Denmark; (E.A.W.A.); (L.K.); (F.N.N.); (A.B.); (J.F.W.)
- Correspondence:
| | - Catherine Rechnitzer
- Department of Pediatrics and Adolescent Medicine, Copenhagen University Hospital, 2100 Copenhagen, Denmark;
| | | | - Line Kenborg
- Danish Cancer Society Research Center, 2100 Copenhagen, Denmark; (E.A.W.A.); (L.K.); (F.N.N.); (A.B.); (J.F.W.)
| | - Filippa Nyboe Norsker
- Danish Cancer Society Research Center, 2100 Copenhagen, Denmark; (E.A.W.A.); (L.K.); (F.N.N.); (A.B.); (J.F.W.)
| | - Andrea Bautz
- Danish Cancer Society Research Center, 2100 Copenhagen, Denmark; (E.A.W.A.); (L.K.); (F.N.N.); (A.B.); (J.F.W.)
| | - Thomas Baad-Hansen
- Department of Orthopedic Surgery, Sarcoma Centre of Aarhus University Hospital, 8200 Aarhus, Denmark;
| | - Laufey Tryggvadottir
- The Icelandic Cancer Registry, 105 Reykjavik, Iceland;
- Faculty of Medicine, University of Iceland, 102 Reykjavik, Iceland
| | | | - Anna Sällfors Holmqvist
- Department of Clinical Sciences Lund, Lund University, 222 41 Lund, Sweden; (A.S.H.); (L.H.)
- Department of Pediatric Hematology and Oncology, Skane University Hospital, 221 85 Lund, Sweden
| | - Lars Hjorth
- Department of Clinical Sciences Lund, Lund University, 222 41 Lund, Sweden; (A.S.H.); (L.H.)
- Department of Pediatric Hematology and Oncology, Skane University Hospital, 221 85 Lund, Sweden
| | - Henrik Hasle
- Department of Pediatrics, Aarhus University Hospital, 8200 Aarhus, Denmark;
| | - Jeanette Falck Winther
- Danish Cancer Society Research Center, 2100 Copenhagen, Denmark; (E.A.W.A.); (L.K.); (F.N.N.); (A.B.); (J.F.W.)
- Department of Clinical Medicine, Faculty of Health, Aarhus University and University Hospital, 8200 Aarhus, Denmark
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Licht SDF, Rugbjerg K, Andersen EW, Nielsen TT, Norsker FN, Kenborg L, Holmqvist AS, Madanat-Harjuoja LM, Tryggvadottir L, Stovall M, Wesenberg F, Hjorth L, Hasle H, Winther JF. Temporal changes in the probability of live birth among female survivors of childhood cancer: A Population-Based Adult Life After Childhood Cancer in Scandinavia (ALiCCS) study in five Nordic countries. Cancer 2021; 127:3881-3892. [PMID: 34297360 DOI: 10.1002/cncr.33791] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 06/07/2021] [Accepted: 06/07/2021] [Indexed: 11/08/2022]
Abstract
BACKGROUND During the past 4 decades, there has been a growing focus on preserving the fertility of patients with childhood cancer; however, no large studies have been conducted of live births across treatment decades during this period. Therefore, the authors estimated the potential birth deficit in female childhood cancer survivors and the probability of live births. METHODS In total, 8886 women were identified in the 5 Nordic cancer registries in whom a childhood cancer had been diagnosed during 1954 through 2006. A population comparison cohort of 62,903 women was randomly selected from the central population registries matched by age and country. All women were followed for live births recorded in medical birth registries. The cumulative probability and the risk ratio (RR) with 95% confidence intervals (CIs) of a live birth were calculated by maternal age across treatment decades. RESULTS The probability of a live birth increased with treatment decade, and, at age 30 years, the rate for survivors most recently diagnosed was close to the rate among the general population (1954-1969: RR, 0.65 [95% CI, 0.54-0.78]; 1970s: RR, 0.67 [95% CI, 0.60-0.74]; 1980s: RR, 0.69 [95% CI, 0.64-0.74]; 1990s: RR, 0.91 [95% CI, 0.87-0.95]; 2000s: RR, 0.94 [95% CI, 0.91-0.97]). CONCLUSIONS Female childhood cancer survivors had a lower probability of a live birth than women in the general population, although, in survivors diagnosed after 1989, the probability was close to that of the general population. Because the pattern of live births differs by cancer type, continuous efforts must be made to preserve fertility, counsel survivors, and refer them rapidly to fertility treatment if necessary. LAY SUMMARY The purpose of this study was to compare the probability of giving birth to a liveborn child in female survivors of childhood cancer with that of women in the general population. Survivors of childhood cancer had a lower probability of live births than women in the general population, although survivors diagnosed after 1989 had a probability close to that of the general population. Continuing focus on how to preserve the potential for fertility among female patients with childhood cancer during treatment is important to increase their chances of having a child.
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Affiliation(s)
- Sofie de Fine Licht
- Childhood Cancer Research Group, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Kathrine Rugbjerg
- Childhood Cancer Research Group, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Elisabeth W Andersen
- Unit of Statistics and Data Analysis, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Thomas T Nielsen
- Childhood Cancer Research Group, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Filippa Nyboe Norsker
- Childhood Cancer Research Group, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Line Kenborg
- Childhood Cancer Research Group, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Anna S Holmqvist
- Department of Clinical Sciences, Lund University, Lund, Sweden.,Pediatric Oncology and Hematology, Skane University Hospital, Lund, Sweden
| | - Laura-Maria Madanat-Harjuoja
- Finnish Cancer Registry, University of Helsinki, Helsinki, Finland.,Department of Pediatrics, Helsinki University Hospital, Helsinki, Finland.,Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, Massachusetts
| | - Laufey Tryggvadottir
- Icelandic Cancer Registry, Reykjavik, Iceland.,Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | - Marilyn Stovall
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Finn Wesenberg
- Cancer Registry of Norway, Oslo, Norway.,Department of Paediatric Haematology and Oncology, Oslo University Hospital, Oslo, Norway
| | - Lars Hjorth
- Department of Clinical Sciences, Lund University, Lund, Sweden.,Pediatric Oncology and Hematology, Skane University Hospital, Lund, Sweden
| | - Henrik Hasle
- Department of Pediatrics and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Jeanette F Winther
- Childhood Cancer Research Group, Danish Cancer Society Research Center, Copenhagen, Denmark.,Department of Clinical Medicine, Faculty of Health, Aarhus University and University Hospital, Arhus, Denmark
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5
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Norsker FN, Boschini C, Rechnitzer C, Holmqvist AS, Tryggvadottir L, Madanat-Harjuoja LM, Schrøder H, Scheike TH, Hasle H, Winther JF, Andersen KK. Risk of late health effects after soft-tissue sarcomas in childhood - a population-based cohort study within the Adult Life after Childhood Cancer in Scandinavia research programme. Acta Oncol 2020; 59:1246-1256. [PMID: 32692292 DOI: 10.1080/0284186x.2020.1794031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
BACKGROUND In the 1960s only 1/3 of children with soft-tissue sarcomas survived, however with improved treatments survival today has reached 70%. Given the previous poor survival and the rarity of soft-tissue sarcomas, the risk of somatic late effects in a large cohort of Nordic soft-tissue sarcoma survivors has not yet been assessed. METHODS In this population-based cohort study we identified 985 five-year soft-tissue sarcoma survivors in Nordic nationwide cancer registries and late effects in national hospital registries covering the period 1964-2012. Information on tumour site and radiotherapy was available for Danish and Finnish survivors (N = 531). Using disease-specific rates of first-time hospital contacts for somatic diseases in survivors and in 4,830 matched comparisons we calculated relative rates (RR) and rate differences (RD). RESULTS Survivors had a RR of 1.5 (95% CI 1.4-1.7) and an absolute RD of 23.5 (17.7-29.2) for a first hospital contact per 1,000 person-years. The highest risks in both relative and absolute terms were of endocrine disorders (RR = 2.5; RD = 7.6), and diseases of the nervous system (RR = 1.9; RD = 6.6), digestive organs (RR = 1.7; RD = 5.4) and urinary system (RR = 1.7; RD = 5.6). By tumour site, excess risk was lower after extremity tumours. Irradiated survivors had a 2.6 (1.2-5.9) times higher risk than non-irradiated. CONCLUSIONS Soft-tissue sarcoma survivors have an increased risk of somatic late effects in 5 out of 10 main diagnostic groups of diseases, and the risk remains increased up to 40 years after cancer diagnosis. Risks were slightly lower for those treated for tumours in the extremities, and radiotherapy increased the risk by more than two-fold.
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Affiliation(s)
- Filippa Nyboe Norsker
- Childhood Cancer Research Group, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Cristina Boschini
- Unit of Statistics and Pharmaco-epidemiology, Danish Cancer Society Research Center, Copenhagen, Denmark
- Department of Biostatistics, University of Copenhagen, Copenhagen, Denmark
| | - Catherine Rechnitzer
- Department of Paediatrics and Adolescent Medicine, Copenhagen University Hospital, Copenhagen, Denmark
| | - Anna Sällfors Holmqvist
- Division of Paediatric Oncology and Hematology, Skane University Hospital, Lund, Sweden
- Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Laufey Tryggvadottir
- The Icelandic Cancer Registry, Reykjavik, Iceland
- Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | | | - Henrik Schrøder
- Department of Paediatrics and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Thomas H. Scheike
- Department of Biostatistics, University of Copenhagen, Copenhagen, Denmark
| | - Henrik Hasle
- Department of Paediatrics and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Jeanette Falck Winther
- Childhood Cancer Research Group, Danish Cancer Society Research Center, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health, Aarhus University and University Hospital, Aarhus, Denmark
| | - Klaus Kaae Andersen
- Unit of Statistics and Pharmaco-epidemiology, Danish Cancer Society Research Center, Copenhagen, Denmark
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6
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Norsker FN, Rechnitzer C, Andersen EW, Linnet KM, Kenborg L, Holmqvist AS, Tryggvadottir L, Madanat-Harjuoja LM, Øra I, Thorarinsdottir HK, Vettenranta K, Bautz A, Schrøder H, Hasle H, Winther JF. Neurologic disorders in long-term survivors of neuroblastoma - a population-based cohort study within the Adult Life after Childhood Cancer in Scandinavia (ALiCCS) research program. Acta Oncol 2020; 59:134-140. [PMID: 31591921 DOI: 10.1080/0284186x.2019.1672892] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Background: Neuroblastoma is the commonest extracranial solid tumor of childhood, yet rare, and with poor survival before 1990, especially for high-risk disease; thus, information on late effects is sparse. With great advances in cancer treatment, survival has reached 80% in the Nordic countries. The aim of the study was to investigate the risk of developing neurologic disorders after neuroblastoma.Material and methods: Through population-based cancer registries of four Nordic countries we identified 654 5-year survivors of neuroblastoma (diagnosed 1959-2008) and 133,668 matched population comparisons. We grouped neurologic diagnoses from national hospital registries into 11 main diagnostic categories and 56 disease-specific sub-categories and calculated relative risks (RRs), absolute excess risks (AERs), cumulative incidence and mean cumulative count (MCC). Information on cancer treatment was available for 49% of survivors.Results: A hospital contact for a neurologic disorder was observed in 181 survivors 5 years or more from cancer diagnosis with 59 expected, yielding a RR of 3.1 (95% CI 2.7-3.6) and an AER of 16 per 1,000 person-years (95% CI 12-19). The most frequent disorders included epilepsy, paralytic syndromes, diseases of the eyes and ears and hearing loss. The cumulative incidence of any neurologic disorder was 31% in survivors 20 years after cancer diagnosis with a MCC of 0.5 unique diagnoses. All risks were highest in survivors of high-risk neuroblastoma.Conclusion: Neuroblastoma survivors represent a population with a high risk of developing neurologic disorders. Our results should contribute to improving health care planning and underscores the need for systematic follow-up care of this vulnerable group of survivors.
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Affiliation(s)
- Filippa Nyboe Norsker
- Danish Cancer Society Research Center, Childhood Cancer Research Group, Copenhagen, Denmark
| | - Catherine Rechnitzer
- Rigshospitalet, Department of Pediatric and Adolescent Medicine, Copenhagen University Hospital, Copenhagen, Denmark
| | | | - Karen Markussen Linnet
- Department of Pediatric and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Line Kenborg
- Danish Cancer Society Research Center, Childhood Cancer Research Group, Copenhagen, Denmark
| | - Anna Sällfors Holmqvist
- Department of Clinical Sciences, Lund University, Lund, Sweden
- Division of Paediatric Oncology and Haematology, Skane University Hospital, Lund, Sweden
| | - Laufey Tryggvadottir
- The Icelandic Cancer Registry, Reykjavik, Iceland
- Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | | | - Ingrid Øra
- Department of Clinical Sciences, Lund University, Lund, Sweden
- Division of Paediatric Oncology and Haematology, Skane University Hospital, Lund, Sweden
| | | | - Kim Vettenranta
- University of Helsinki Hospital for Children and Adolescents, Helsinki, Finland
| | - Andrea Bautz
- Danish Cancer Society Research Center, Childhood Cancer Research Group, Copenhagen, Denmark
| | - Henrik Schrøder
- Department of Pediatric and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Henrik Hasle
- Department of Pediatric and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Jeanette Falck Winther
- Danish Cancer Society Research Center, Childhood Cancer Research Group, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health, Aarhus University and University Hospital, Aarhus, Denmark
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7
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Norsker FN, Rechnitzer C, Cederkvist L, Holmqvist AS, Tryggvadottir L, Madanat-Harjuoja LM, Øra I, Thorarinsdottir HK, Vettenranta K, Bautz A, Schrøder H, Hasle H, Winther JF. Somatic late effects in 5-year survivors of neuroblastoma: a population-based cohort study within the Adult Life after Childhood Cancer in Scandinavia study. Int J Cancer 2018; 143:3083-3096. [PMID: 29926896 DOI: 10.1002/ijc.31631] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 05/18/2018] [Indexed: 11/09/2022]
Abstract
Because of the rarity of neuroblastoma and poor survival until the 1990s, information on late effects in neuroblastoma survivors is sparse. We comprehensively reviewed the long-term risk for somatic disease in neuroblastoma survivors. We identified 721 5-year survivors of neuroblastoma in Nordic population-based cancer registries and identified late effects in national hospital registries covering the period 1977-2012. Detailed treatment information was available for 46% of the survivors. The disease-specific rates of hospitalization of survivors and of 152,231 randomly selected population comparisons were used to calculate standardized hospitalization rate ratios (SHRRs) and absolute excess risks (AERs). During 5,500 person-years of follow-up, 501 5-year survivors had a first hospital contact yielding a SHRR of 2.3 (95% CI 2.1-2.6) and a corresponding AER of 52 (95% CI 44-60) per 1,000 person-years. The highest relative risks were for diseases of blood and blood-forming organs (SHRR 3.8; 95% CI 2.7-5.4), endocrine diseases (3.6 [3.1-4.2]), circulatory system diseases (3.1 [2.5-3.8]), and diseases of the nervous system (3.0 [2.6-3.3]). Approximately 60% of the excess new hospitalizations of survivors were for diseases of the nervous system, urinary system, endocrine system, and bone and soft tissue. The relative risks and AERs were highest for the survivors most intensively treated. Survivors of neuroblastoma have a highly increased long-term risk for somatic late effects in all the main disease groups as compared to background levels. Our results are useful for counseling survivors and should contribute to improving health care planning in post-therapy clinics.
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Affiliation(s)
| | | | - Luise Cederkvist
- Danish Cancer Society, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Anna Sällfors Holmqvist
- Pediatric Oncology and Hematology, Skåne University Hospital, Lund, Sweden.,Department of Clinical Sciences, Lund University, Lund, Sweden
| | | | | | - Ingrid Øra
- Pediatric Oncology and Hematology, Skåne University Hospital, Lund, Sweden
| | | | - Kim Vettenranta
- University of Helsinki and Hospital for Children and Adolescents, Helsinki, Finland
| | - Andrea Bautz
- Danish Cancer Society, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Henrik Schrøder
- Aarhus University Hospital, Department of Pediatrics, Skejby, Aarhus, Denmark
| | - Henrik Hasle
- Aarhus University Hospital, Department of Pediatrics, Skejby, Aarhus, Denmark
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Norsker FN, Espenhain L, á Rogvi S, Morgen CS, Andersen PK, Nybo Andersen AM. Socioeconomic position and the risk of spontaneous abortion: a study within the Danish National Birth Cohort. BMJ Open 2012; 2:bmjopen-2012-001077. [PMID: 22734118 PMCID: PMC3383986 DOI: 10.1136/bmjopen-2012-001077] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES To investigate the relationship between different indicators of socioeconomic position and the risk of spontaneous abortion. DESIGN Cohort study. SETTING 1996-2002, Denmark. PARTICIPANTS All first time participants, a total of 89 829 pregnant women, enrolled in the Danish National Birth Cohort were included in the present study. Overall, 4062 pregnancies ended in spontaneous abortion. Information on education, income and labour market attachment in the year before pregnancy was drawn from national registers. MAIN OUTCOME MEASURE Spontaneous abortion, that is, fetal death within the first 22 weeks of pregnancy, was the outcome of interest. The authors estimated HRs of spontaneous abortion using Cox regression analysis with gestational age as the underlying time scale. RESULTS Women with <10 years of education had an elevated risk of spontaneous abortion when compared with women with >12 years of education (HR 1.19 (95% CI 1.05 to 1.34)). The HR estimates for the four lowest income quintiles were all increased (HRs between 1.09 and 1.15) as compared with the upper quintile but did not differ considerably from each other. In general, no statistically significant association was found between labour market attachment and the risk of spontaneous abortion; however, the group of women on disability pension had an increased HR of spontaneous abortion when compared with women who were employed (HR 1.32 (95% CI 0.82 to 2.13)). CONCLUSIONS Educational level and income were inversely associated with the risk of spontaneous abortion. As these factors most likely are non-causally related to spontaneous abortion, the findings indicate that factors related to social position, probably of the environmental and behavioural type, may affect spontaneous abortion risk. The study highlights the need for studies addressing such exposures in order to prevent spontaneous abortions.
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Affiliation(s)
- Filippa Nyboe Norsker
- Section of Social Medicine, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Laura Espenhain
- Section of Social Medicine, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Sofie á Rogvi
- Section of Social Medicine, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Camilla Schmidt Morgen
- Section of Social Medicine, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Per Kragh Andersen
- Section of Biostatistics, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Anne-Marie Nybo Andersen
- Section of Social Medicine, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
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