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Do age at diagnosis, tumour thickness and tumour site explain sex differences in melanoma survival? A causal mediation analysis using cancer registry data.
Afshar, Nina; Dashti, S Ghazaleh; Mar, Victoria; Te Marvelde, Luc; Evans, Sue; Milne, Roger L; English, Dallas R.
Afiliación
  • Afshar N; Cancer Epidemiology Division, Cancer Council Victoria, Melbourne, Victoria, Australia.
  • Dashti SG; Centre for Epidemiology and Biostatistics, School of Population and Global Health, The University of Melbourne, Melbourne, Victoria, Australia.
  • Mar V; Clinical Epidemiology and Biostatistics Unit, Murdoch Children's Research Institute, Melbourne, Victoria, Australia.
  • Te Marvelde L; Clinical Epidemiology and Biostatistics Unit, Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia.
  • Evans S; Victorian Melanoma Service, Alfred Hospital, Melbourne, Victoria, Australia.
  • Milne RL; Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia.
  • English DR; Victorian Cancer Registry, Cancer Council Victoria, Melbourne, Victoria, Australia.
Int J Cancer ; 154(5): 793-800, 2024 Mar 01.
Article en En | MEDLINE | ID: mdl-37823184
Women diagnosed with melanoma have better survival than men, but little is known about potential intervention targets to reduce this survival gap by sex. We conducted a population-based study using Victorian Cancer Registry data including 5833 women and 6780 men aged 15 to 70 years when diagnosed with first primary melanoma between 2007 and 2015. Deaths to the end of 2020 were identified through linkage to the Victorian and national death registries. We estimated the effect of age at diagnosis, tumour thickness and tumour site on reducing the melanoma-specific survival gap by sex (ie, interventional indirect effects [IIEs]) on risk difference (RD) scale. Compared to women, there were 211 (95% CI: 145-278) additional deaths per 10 000 in men within 5 years following diagnosis. We estimated that 44% of this gap would be reduced by a hypothetical intervention shifting the distribution of melanoma thickness in men to be the same as that observed for women (IIEthickness RD 93 [95% CI: 75-118] per 10 000) and 20% by an intervention on tumour site (head and neck/trunk vs upper limb/lower limb; IIEsite RD 42 [95% CI: 15-72] per 10 000), while an intervention on age at diagnosis would have a negligible effect. Tumour thickness, tumour site and age at diagnosis mediated 65% of the effect of sex on 5-year melanoma survival in Victoria. Of these factors, tumour thickness had the most considerable mediating effect, suggesting that effective promotion of earlier detection of melanoma in men could potentially nearly halve the gap in melanoma-specific survival by sex.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Neoplasias Cutáneas / Melanoma Tipo de estudio: Diagnostic_studies / Prognostic_studies Límite: Female / Humans / Male Idioma: En Revista: Int J Cancer Año: 2024 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Estados Unidos
Texto completo
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Neoplasias Cutáneas / Melanoma Tipo de estudio: Diagnostic_studies / Prognostic_studies Límite: Female / Humans / Male Idioma: En Revista: Int J Cancer Año: 2024 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Estados Unidos