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Low level of education is associated with later stage at diagnosis and reduced survival in cutaneous malignant melanoma: A nationwide population-based study in Sweden

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Author

  • H. Eriksson
  • J. Lyth
  • E. Mansson-Brahme
  • M. Frohm-Nilsson
  • Christian Ingvar
  • C. Lindholm
  • P. Naredi
  • U. Stierner
  • G. Wagenius
  • J. Carstensen
  • J. Hansson
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Summary, in English

Background: A worse outcome has been reported for cutaneous malignant melanoma (CMM) patients with low socioeconomic status. We have investigated the association between level of education, clinical stage at diagnosis (stage at diagnosis) and CMM-specific survival in Sweden. Methods: We identified 27,235 patients from the Swedish Melanoma Register diagnosed with a primary invasive CMM between 1990 and 2007 and linked data to nationwide, population-based, health and census registers with a follow-up to 2010. Results: The odds ratio (OR) of higher disease stage at diagnosis was significantly increased in lower education groups (OR stage II versus I = 1.6; 95% confidence interval (CI) = 1.5-1.7. OR stage III-IV versus I = 2.3; 95% CI = 1.8-2.9). The risk of dying of CMM, was significantly increased in patients with low (hazard ratio (HR) low versus high = 2.02; 95% CI = 1.80-2.26; p < 0.0001) and intermediate (HR intermediate versus high = 1.35; 95% CI = 1.20-1.51; p < 0.0001) level of education. After adjustment for age, gender, stage at diagnosis and other known prognostic factors, the HRs remained significant for low versus high (HR = 1.13; 95% CI = 1.01-1.27; p = 0.04) but not for intermediate versus high (HR = 1.11; 95% CI = 0.99-1.24; p = 0.08) education. The HR associated with low level of education was significantly higher among female patients, patients <55 years, patients with truncal tumours and during the first 5 years after diagnosis. Conclusion: Lower level of education is associated with reduced CMM-specific survival, which may at least partially be attributed to a more advanced stage at diagnosis. These results emphasise the need for improved early detection strategies. (C) 2013 Elsevier Ltd. All rights reserved.

Department/s

  • Surgery (Lund)
  • BioCARE: Biomarkers in Cancer Medicine improving Health Care, Education and Innovation

Publishing year

2013

Language

English

Pages

2705-2716

Publication/Series

European Journal of Cancer

Volume

49

Issue

12

Document type

Journal article

Publisher

Elsevier

Topic

  • Surgery

Keywords

  • Melanoma
  • Survival
  • Socioeconomic status
  • Level of education
  • Stage at
  • diagnosis
  • Population-based

Status

Published

ISBN/ISSN/Other

  • ISSN: 1879-0852