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Article of the Month: Further Evidence that Bladder Cancer Patients should Stop Smoking




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Every Month the Editor-in-Chief selects an Article of the Month from the current issue of BJUI. The abstract is reproduced below and you can click on the button to read the full article, which is freely available to all readers for at least 30 days from the time of this post.

In addition to the article itself, there is an accompanying editorial written by a prominent member of the urological community. This blog is intended to provoke comment and discussion and we invite you to use the comment tools at the bottom of each post to join the conversation.

If you only have time to read one article this week, it should be this one.

Trends in the risk of second primary cancer among bladder cancer survivors: a population-based cohort of 10 047 patients

Joris Muller*,, Pascale Grosclaude, Benedicte Lapotre-Ledoux§,Anne-Sophie Woronoff§,**, Anne-Valerie Guizard§,††, Simona Bara§,‡‡, Marc Colonna§,§§Xavier Troussard§,¶¶, Veronique Bouvier§,***, Brigitte Tretarre§,†††, Michel Velten*,,§,‡‡‡ and Jeremie Jegu*,

 

*Bas-Rhin Cancer Registry, EA 3430, FMTS, University of Strasbourg, Department of Public Health, University Hospital of Strasbourg, Strasbourg, Tarn Cancer Registry, Albi, §
Francim: Reseau francais des registres des cancers, Toulouse, Somme Cancer Registry, Department of Hygiene and Public Health, University Hospital of Amiens, Amiens, **Doubs and Belfort Territory Cancer Registry, University Hospital of Besancon, Besancon, ††Calvados General Cancer Registry, Cancers & Preventions, U 1086 Inserm, Francois Baclesse Centre, Caen, ‡‡Manche Cancer Registry, Cotentin Hospital, Cherbourg-Octeville, §§Isere Cancer Registry, University Hospital of Grenoble, Grenoble, ¶¶Basse-Normandie Haematological Malignancies Cancer Registry, University Hospital of Caen, ***Calvados Digestive Cancer Registry, Cancers & Preventions, U 1086 Inserm, Francois Baclesse Centre, Caen, †††Herault Cancer Registry, Research Center, Montpellier , and ‡‡‡Department of Epidemiology and Biostatistics, Paul Strauss Center, Strasbourg, France

 

Objectives

To determine whether the risk of second primary cancer (SPC) among patients with bladder cancer (BCa) has changed over past years.

Materials and Methods

Data from 10 French population-based cancer registries were used to establish a cohort of 10 047 patients diagnosed with a first invasive (≥T1) BCa between 1989 and 2004 and followed up until 2007. An SPC was defined as the first subsequent primary cancer occurring at least 2 months after a BCa diagnosis. Standardized incidence ratios (SIRs) of metachronous SPC were calculated. Multivariate Poisson regression models were used to assess the direct effect of the year of BCa diagnosis on the risk of SPC.

JulAOTW1Results

Results

The risk of new malignancy among BCa survivors was 60% higher than in the general population (SIR 1.60, 95% confidence interval [CI] 1.51–1.68). Male patients presented a high risk of SPC of the lung (SIR 3.12), head and neck (SIR 2.19) and prostate (SIR 1.54). In multivariate analyses adjusted for gender, age at diagnosis and follow-up, a significant increase in the risk of SPC of the lung was observed over the calendar year of BCa diagnosis (P for linear trend 0.010), with an SIR increasing by 3.7% for each year (95% CI 0.9–6.6%); however, no particular trend was observed regarding the risk of SPC of the head and neck (P = 0.596) or the prostate (P = 0.518).

Conclusions

As the risk of SPC of the lung increased between 1989 and 2004, this study contributes more evidence to support the promotion of tobacco smoking cessation interventions among patients with BCa.

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