期刊
LANCET ONCOLOGY
卷 17, 期 10, 页码 1445-1452出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/S1470-2045(16)30275-3
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- seventh framework programme of Directorate-General Research of the European Commission, through the CoheaHr Network [603019]
Background Cervical cancer incidence remains high in several Baltic, central, and eastern European (BCEE) countries, mainly as a result of a historical absence of eff ective screening programmes. As a catalyst for action, we aimed to estimate the number of women who could be spared from cervical cancer across six countries in the region during the next 25 years, if eff ective screening interventions were introduced. Methods In this population-based study, we applied age-period-cohort models with spline functions within a Bayesian framework to incidence data from six BCEE countries (Estonia, Latvia, Lithuania, Belarus, Bulgaria, and Russia) to develop projections of the future number of new cases of cervical cancer from 2017 to 2040 based on two future scenarios: continued absence of screening (scenario A) versus the introduction of eff ective screening from 2017 onwards (scenario B). The timespan of available data varied from 16 years in Bulgaria to 40 years in Estonia. Projected rates up to 2040 were obtained in scenario A by extrapolating cohort-specifi c trends, a marker of changing risk of human papillomavirus (HPV) infection, assuming a continued absence of eff ective screening in future years. Scenario B added the eff ect of gradual introduction of screening in each country, under the assumption period eff ects would be equivalent to the decreasing trend by calendar year seen in Denmark (our comparator country) since the progressive regional introduction of screening from the late 1960s. Findings According to scenario A, projected incidence rates will continue to increase substantially in many BCEE countries. Very high age-standardised rates of cervical cancer are predicted in Lithuania, Latvia, Belarus, and Estonia (up to 88 cases per 100 000). According to scenario B, the benefi cial eff ects of eff ective screening will increase progressively over time, leading to a 50-60% reduction of the projected incidence rates by around 2040, resulting in the prevention of cervical cancer in 1500 women in Estonia and more than 150 000 women in Russia. The immediate launch of eff ective screening programmes could prevent almost 180 000 new cervical cancer diagnoses in a 25-year period in the six BCEE countries studied. Interpretation Based on our fi ndings, there is a clear need to begin cervical screening in these six countries as soon as possible to reduce the high and increasing incidence of cervical cancer over the next decades. Funding None. Copyright (C) 2016 International Agency for Research on Cancer; licensee Elsevier.
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