Epidemiology of Merkel cell carcinoma. A population-based study from 1985 to 2013, in northeastern of France

Int J Cancer. 2019 Feb 15;144(4):741-745. doi: 10.1002/ijc.31860. Epub 2018 Oct 4.

Abstract

Merkel Cell Carcinoma (MCC) is an aggressive skin cancer with an increasing incidence. Population-based epidemiologic data about MCC in France are rare. Our study aims to describe the epidemiology of MCC in Bas-Rhin, Northeastern of France, between 1985 and 2013. Data were collected from the Bas-Rhin Cancer Registry. We measured age-adjusted incidence rates (per 100,000 person-years) and effect of age, sex and period of diagnosis on survival. The world age-standardized incidence rate was 0.17 and it quadrupled between 1985 and 2013. Cases (n = 111) occurred mostly in women (60%) and in persons ≥70 years of age (74%). Incidence rates was close for men (0.18) and women (0.16) and was 25-time higher in people ≥70 years of age but incidence rate similarly increased between 1985 and 2013 in persons older and younger than 70 years. Net 5-year survival was 48.5%; female sex and younger age were positive predictors of survival. Given the low number of cases, incidence and survival data should be interpreted with caution. Incidence of MCC in Bas-Rhin quadrupled between 1985 and 2013. The highest incidence rate was observed in people ≥70 years. Better survival was associated with female sex and younger age. We hypothesize that MCC will still increase and be diagnosed in increasingly younger patients in next generations.

Keywords: Merkel Cell Carcinoma; cancer registry; epidemiology.

MeSH terms

  • Adult
  • Age Factors
  • Aged
  • Aged, 80 and over
  • Carcinoma, Merkel Cell / epidemiology*
  • Female
  • France / epidemiology
  • Humans
  • Incidence
  • Male
  • Middle Aged
  • Population Surveillance / methods*
  • Registries / statistics & numerical data*
  • Sex Factors
  • Skin Neoplasms / epidemiology*