4.6 Article

Incidence and survival of epithelial ovarian, fallopian tube, peritoneal, and undesignated abdominal/pelvic cancers in Sweden 1960-2014: A population-based cohort study

Journal

BMC CANCER
Volume 21, Issue 1, Pages -

Publisher

BMC
DOI: 10.1186/s12885-021-08169-w

Keywords

ovarian cancer; histopathology; long-term follow-up; relative survival; population-based; cancer registry

Categories

Funding

  1. Swedish Cancer Society
  2. Southern Health Care Region of Sweden
  3. Lund University

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Overall incidence of ovarian, tubal, peritoneal, and undesignated abdominal/pelvic cancers in Sweden has declined since 1980. The median age at diagnosis has increased, with an increase in incidence of serous carcinoma. Survival rates at 1, 2, and 5 years have improved since 1960, but 10-year survival remains poor. Fallopian tube cancer has the best survival rates, while undesignated abdominal/pelvic cancer has the worst.
BackgroundDespite improved surgical and oncological treatment, ovarian cancer continues to be the most lethal of the gynecologic malignancies. We aimed to analyze survival trends in epithelial ovarian cancer with regard to age, tumor site, and morphology in Sweden 1960 to 2014.MethodsA nationwide population-based study was conducted using data from the Swedish Cancer Registry on 46,350 women aged 18 or older with a diagnosis of epithelial ovarian, fallopian tube, peritoneal, or undesignated abdominal/pelvic cancer 1960 to 2014. Analyses of age-standardized incidence and relative survival (RS) were performed and time trends modelled according to age, tumor site, and morphology.ResultsOverall incidence of ovarian, tubal, peritoneal, and undesignated abdominal/pelvic cancers declined since 1980. Median age at diagnosis increased. Serous carcinoma increased in incidence. RS at 1, 2 and 5years from diagnosis improved since 1960, although not for the youngest and the oldest patients. Ten-year RS did not improve. The best RS was found for fallopian tube cancer and the worst RS for undesignated abdominal/pelvic cancer. Among the morphologic subgroups, endometrioid carcinoma had the best RS.ConclusionsSurvival in epithelial ovarian, tubal, peritoneal, and undesignated abdominal/pelvic cancers in Sweden has improved over the last six decades. Advances in epithelial ovarian cancer treatment have extended life for the first 5years from diagnosis but 10-year survival remains poor.

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