Annals of Oncology Advance Access originally published online on January 10, 2008
Annals of Oncology 2008 19(5):1003-1008; doi:10.1093/annonc/mdm590
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epidemiology |
Alcohol consumption and renal cell cancer risk in two Italian case–control studies
1 Istituto di Ricerche Farmacologiche Mario Negri, Milan
2 Servizio di Epidemiologia, Istituto Nazionale Tumori Fondazione G. Pascale, Naples
3 S.O.C. Epidemiologia e Biostatistica, Centro di Riferimento Oncologico, Aviano
4 Servizio Integrato di Epidemiologia e Sistemi Informativi (SINTESI), Istituto Nazionale Tumori Regina Elena, Roma, Italy
5 International Agency for Research on Cancer, Lyon Cedex, France
6 Istituto di Statistica Medica e Biometria G. A. Maccacaro, Università degli Studi di Milano, Milan, Italy
* Correspondence to: Dr C. Pelucchi, Istituto di Ricerche Farmacologiche Mario Negri, Via La Masa 19, 20156 Milan, Italy. Tel: +39-02-39014577; Fax: +39-02-33200231; E-mail: pelucchi{at}marionegri.it
Background: There is some evidence that alcohol consumption is inversely associated with renal cell cancer (RCC), but the issue is still unclear.
Patients and methods: We investigated the relation using data from two Italian multicentric case–control studies conducted from 1985 to 2004, including a total of 1115 incident, histologically confirmed cases and 2582 controls hospitalised with acute, non-neoplastic conditions.
Results: Compared with non-drinkers, the multivariate odds ratios (ORs) of RCC were 0.87 [95% confidence interval (CI) 0.73–1.04] for
4 drinks per day, 0.76 (95% CI 0.59–0.99) for >4 to
8 drinks per day and 0.70 (95% CI 0.50–0.97) for >8 drinks per day of alcoholic beverages, with a significant inverse trend in risk (P value = 0.01). The ORs were 0.85 (95% CI 0.71–1.02) for wine, 0.84 (95% CI 0.68–1.03) for beer and 0.86 (95% CI 0.70–1.05) for spirits consumption, as compared with abstainers. No trend in risk of RCC emerged with duration (P value = 0.94) and age at starting alcohol consumption (P value = 0.81). Results were consistent in men and women, as well as in strata of age, smoking and body mass index.
Conclusions: This pooled analysis found an inverse association between alcohol drinking and RCC. Risks continued to decrease even above eight drinks per day (i.e. >100 g/day) of alcohol intake, with no apparent levelling in risk.
Key words: alcohol drinking, alcoholic beverages, case–control studies, renal cell carcinoma, risk factors
Received for publication October 17, 2007. Revision received December 6, 2007. Accepted for publication December 6, 2007.
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