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Monday, September 05, 2016

Global trends and predictions in ovarian cancer mortality



abstract

Background Over the last two decades, ovarian cancer mortality rates have levelled or declined. There are, however, persisting and substantial differences in ovarian cancer patterns and trends. 

Patients and methods We updated global trends in ovarian cancer mortality to 2012, and predicted trends in rates to 2020 using data from the World Health Organization database. 

Results In the EU, age-adjusted ovarian cancer mortality rates decreased 10% between 2002 and 2012, to 5.2/100 000. The decline was ∼16% in the USA, to 4.9/100 000 in 2012. Latin American countries had lower rates, and declines were observed in Argentina and Chile. Likewise, modest declines (−2.1%) were observed in Japan, whose rate remained low (3.2/100 000 in 2012). Australia had a rate of 4.3/100 000 in 2012, and a 12% decline. The falls were larger in young women, than in middle or old age. Recent rates at age 20–49 were higher in Japan than in the EU and the USA. Predictions to 2020 indicate a further 15% decline in the USA and 10% in the EU and Japan. 

Conclusions The main reason for the favourable trends is the use of oral contraceptives (OCs), particularly, in the USA and countries of the EU where OCs were introduced earlier. Declines in menopausal hormone use may also have played a favourable role in elderly women, as well as improved diagnosis, management and treatment.

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