Prostate-cancer mortality in the USA and UK in 1975-2004: an ecological study.
Prostate-cancer mortality in the USA and UK in 1975-2004: an ecological study.
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DOI:
10.1016/s1470-2045(08)70104-9
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发表时间:
2008-05
期刊:
影响因子:
51.1
通讯作者:
Donovan, Jenny
中科院分区:
文献类型:
--
作者:
Collin, Simon M.;Martin, Richard M.;Metcalfe, Chris;Gunnell, David;CAlbertsen, Peter;Neal, David;Hamdy, Freddie;Stephens, Peter;Lane, J. Athene;Moore, Rollo;Donovan, Jenny
There is no conclusive evidence that screening based on prostate-specific antigen (PSA) tests reduces prostate cancer mortality. In the USA uptake of PSA testing has been rapid, but is much less common in the UK. To investigate trends in prostate cancer mortality and incidence in the USA and UK from 1975-2004, contrasting these with trends in screening and treatment. Joinpoint regression analysis of cancer mortality statistics from Cancer Research UK and the USA National Cancer Institute Surveillance Epidemiology and End Results (SEER) program was used to estimate the annual percentage change in prostate cancer mortality in each country and the points in time when trends changed. Age-specific and age-adjusted prostate cancer mortality peaked in the early 1990s at almost identical rates in both countries, but age-adjusted mortality in the USA subsequently declined by 4.2% (95% CI 4.0-4.3%) per annum, four times the rate of decline in the UK (1.1%; 0.8-1.4%). The mortality decline in the USA was greatest and most sustained in those ≥75 years, whereas death rates had plateaued in this age group in the UK by 2000. The striking decline in prostate cancer mortality in the USA compared with the UK between 1994-2004 coincided with much higher uptake of PSA screening in the USA. Explanations for the different trends in mortality include the possibility of an early impact of initial screening rounds on men with more aggressive asymptomatic disease in the USA, different approaches to treatment in the two countries, and bias related to the misattribution of cause of death. Speculation over the role of screening will continue until evidence from randomised controlled trials is published.