2
Association of change in physical activity and body weight with quality of life and mortality in
colorectal cancer: a systematic review and meta-analysis.
Association entre le changement de pratique d’activité physique et le poids sur la qualité de la vie et la
mortalité par cancer colorectal: une revue systématique et une méta-analyse.
Otto SJ et al., Support Care Cancer. 2015 May
PURPOSE: A systematic review and a meta-analysis were performed to assess the associations between change
over time in physical activity and weight and quality of life and mortality in colorectal cancer patients.
METHODS: The PubMed, Embase, and Cochrane Central Register of Controlled Trials databases were searched
for English language articles published between January 1, 1990 and October 7, 2013. These articles reported
results for changes in physical activity and body weight, assessed at pre- to post-diagnosis or at post-diagnosis
only. A random effects model was used to analyze pooled quality of life and mortality estimates.
RESULTS: Seven eligible studies were identified and analyzed. Increased physical activity was associated with
higher overall quality of life scores (N = 3 studies; standardized mean difference (SMD) = 0.74, 95 % confidence
interval (CI) = 0.66-0.82), reduced disease-specific mortality risk (hazard ratio (HRpooled) = 0.70, 95 %
CI = 0.55-0.85), and reduced overall mortality (HRpooled = 0.75, CI = 0.62-0.87) (N = 2 studies). Weight gain
was not associated with disease-specific (HRpooled = 1.02, CI = 0.84-1.20) or overall (HRpooled = 1.03,
CI = 0.86-1.19) mortality (N = 3 studies).
CONCLUSIONS: Increased physical activity was associated with improved quality of life, a reduced risk of
colorectal cancer, and overall mortality rate. Given the paucity of the literature published on this topic, this
finding should be interpreted with caution.
Les Monographies du CIRC évaluent le DDT, le lindane et le 2,4-D
Le Centre International de Recherche sur le Cancer a classé l'insecticide DDT comme probablement cancérogène
pour l'homme (Groupe 2A), sur la base d’indications suffisantes selon lesquelles le DDT provoque le cancer
chez l’animal de laboratoire, et d’indications limitées de sa cancérogénicité pour l'homme.
L'herbicide 2,4-D a été classé comme peut-être cancérogène pour l’homme (Groupe 2B), sur la base
d’indications insuffisantes chez l'homme et d’indications limitées chez l’animal de laboratoire
Le lindane a été largement utilisé pour lutter contre les insectes, y compris dans l'agriculture et pour le traitement
des poux et de la gale chez l’homme. Des expositions élevées ont été rapportées chez les travailleurs agricoles et
les applicateurs de pesticides; cependant, l'utilisation du lindane est désormais interdite ou limitée dans la plupart
des pays.
European Code against Cancer 4th Edition: Alcohol drinking and cancer.
Quatrième édition du Code Européen contre le Cancer : consommation d’alcool et cancer
Schüz J Cancer Epidemiol. 2015 Jul
Alcohol consumption is the third leading risk factor for disease and mortality in Europe. The International
Agency for Research on Cancer (IARC) Monographs provide strengthened evidence that the consumption of
alcoholic beverages is causally associated with cancers of the oral cavity, pharynx, larynx, oesophagus, liver,
colorectum and female breast, even for low and moderate alcohol intakes. The risk of cancer increases in a dose-
dependent manner, and the higher the amount of alcohol consumed, the higher the risk of developing cancer.
Several biological mechanisms explain the carcinogenicity of alcohol; among them, ethanol and its genotoxic
metabolite acetaldehyde play a major role. Taking all this evidence into account, a recommendation of the 4th
edition of the European Code against Cancer (ECAC) is: "If you drink alcohol of any type, limit your intake. Not
drinking alcohol is better for cancer prevention."