Evidence map›Paper›PMID 18424233›Full record

ArticleThe Lancet. Oncology2008

Prostate-cancer mortality in the USA and UK in 1975-2004: an ecological study.

Simon M Collin, Richard M Martin, Chris Metcalfe, David Gunnell, Peter C Albertsen, David Neal, Freddie Hamdy, Peter Stephens, J Athene Lane, Rollo Moore and 1 more

Open access · hybridAbstract readComparative StudyMulticenter Study
In one paragraph

Article in The Lancet. Oncology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed, 3 pooled it
29.8field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

79 citing papers in PubMed, 3 syntheses or guidelines pooled it, 270 citations in OpenAlex.

  1. Pooled it
  2. Screening for prostate cancer.The Cochrane database of systematic reviews · 2013
    Pooled it
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  20. Epidemiology of Prostate Cancer.World journal of oncology · 2019
    Review

19 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 5 institutions in 2 countries.

Simon M CollinDepartment of Social Medicine, University of Bristol, Canynge Hall, Bristol, UK. simon.collin@bristol.ac.uk
Richard M Martin
Chris Metcalfe
David Gunnell
Peter C Albertsen
David Neal
Freddie Hamdy
Peter Stephens
J Athene Lane
Rollo Moore
Jenny Donovan
University of Bristol · GBRoyal Marsden Hospital · GBUConn Health · USUniversity of Cambridge · GBUniversity of Sheffield · GB

Funding

Cancer Research UK A8145Medical Research Council G0500966
6 · The paper itself

Abstract

backgroundThere is no conclusive evidence that screening based on serum prostate-specific antigen (PSA) tests decreases prostate-cancer mortality. Since its introduction in the USA around 1990, uptake of PSA testing has been rapid in the USA, but much less common in the UK. Our aim was to study trends over time in prostate-cancer mortality and incidence in the USA and UK in 1975-2004, and compare these patterns with trends in screening and treatment.

methodsJoinpoint regression analysis of cancer-mortality statistics from Cancer Research UK (London, UK) and from the US National Cancer Institute Surveillance, Epidemiology and End Results (SEER) programme from 1975 to 2004 was used to estimate the annual percentage change in prostate-cancer mortality in both countries and the points in time when trends changed. The ratio of USA to UK age-adjusted prostate-cancer incidence was also assessed.

findingsAge-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 after 1994 by -4.17% (95% CI -4.34 to -3.99) each year, four-times the rate of decline in the UK after 1992 (-1.14% [-1.44 to -0.84]). The mortality decline in the USA was greatest and most sustained in patients aged 75 years or older (-5.32% [-8.23 to -2.32]), whereas death rates had plateaued in this age group in the UK by 2000. The mean ratio of USA to UK age-adjusted prostate-cancer incidence rates in 1975-2003 was 2.5, with a pronounced peak around the time that PSA testing was introduced in the USA. Numbers needed to treat to prevent one death from prostate cancer were 33 000 in the 55-64-year age group.

interpretationThe striking decline in prostate-cancer mortality in the USA compared with the UK in 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 effect 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.

Indexed as

AgedAge DistributionEpidemiologic Research DesignHumansIncidenceLinear ModelsMaleMass ScreeningMiddle AgedPredictive Value of TestsProstate-Specific AntigenProstatic NeoplasmsReproducibility of ResultsResidence CharacteristicsSEER ProgramTime FactorsProstate-Specific Antigen

Identifiers

PMID18424233
PMCPMC2760747
OpenAlexW2156351746

What OpenQuestion holds

Textmetadata
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.