AIMS: To provide a quantitative assessment of the association between excess body weight (EBW) and the risk of primary liver cancer (PLC), we performed an updated meta-analysis of prospective observational studies. METHODS: We searched PUBMED and EMBASE for studies of body mass index and the risk of PLC published through 15 th September 2011. Summary relative risks (SRRs) with their corresponding 95% confidence intervals (CIs) were calculated using a random-effects model. The meta-regression and stratified methods were used to examine heterogeneity across studies. RESULTS: A total of 26 prospective studies, including 25,337 PLC cases, were included in this analysis. Overall, excess body weight (EBW: body mass index (BMI) ≥ 25 kg/m2) and obesity (BMI ≥ 30 kg/m2) were associated with an increased risk of PLC, with significant heterogeneity (EBW: SRRs 1.48, 95% CIs 1.31-1.67, P(h)<0.001, I2=83.6%; Obesity: SRRs 1.83, 95% CIs 1.59-2.11, P(h)<0.001, I2=75.0%). Subgroup analyses revealed that the positive associations were independent of geographic locations, alcohol consumption, history of diabetes or infections with hepatitis B (HBV) and/or hepatitis C virus (HCV). Obese males had a higher risk of PLC than obese females did (P=0.027). A stronger risk of PLC with EBW was observed for patients with HCV (but not HBV) infection or cirrhosis compared with the general population. CONCLUSIONS: Findings from this meta-analysis strongly support that EBW or obesity is associated with an increased risk of PLC in both males and females.
AIMS: To provide a quantitative assessment of the association between excess body weight (EBW) and the risk of primary liver cancer (PLC), we performed an updated meta-analysis of prospective observational studies. METHODS: We searched PUBMED and EMBASE for studies of body mass index and the risk of PLC published through 15 th September 2011. Summary relative risks (SRRs) with their corresponding 95% confidence intervals (CIs) were calculated using a random-effects model. The meta-regression and stratified methods were used to examine heterogeneity across studies. RESULTS: A total of 26 prospective studies, including 25,337 PLC cases, were included in this analysis. Overall, excess body weight (EBW: body mass index (BMI) ≥ 25 kg/m2) and obesity (BMI ≥ 30 kg/m2) were associated with an increased risk of PLC, with significant heterogeneity (EBW: SRRs 1.48, 95% CIs 1.31-1.67, P(h)<0.001, I2=83.6%; Obesity: SRRs 1.83, 95% CIs 1.59-2.11, P(h)<0.001, I2=75.0%). Subgroup analyses revealed that the positive associations were independent of geographic locations, alcohol consumption, history of diabetes or infections with hepatitis B (HBV) and/or hepatitis C virus (HCV). Obese males had a higher risk of PLC than obese females did (P=0.027). A stronger risk of PLC with EBW was observed for patients with HCV (but not HBV) infection or cirrhosis compared with the general population. CONCLUSIONS: Findings from this meta-analysis strongly support that EBW or obesity is associated with an increased risk of PLC in both males and females.
Authors: Javier Tejeda-Maldonado; Ignacio García-Juárez; Jonathan Aguirre-Valadez; Adrián González-Aguirre; Mario Vilatobá-Chapa; Alejandra Armengol-Alonso; Francisco Escobar-Penagos; Aldo Torre; Juan Francisco Sánchez-Ávila; Diego Luis Carrillo-Pérez Journal: World J Hepatol Date: 2015-03-27
Authors: Gundula Behrens; Thomas Gredner; Christian Stock; Michael F Leitzmann; Hermann Brenner; Ute Mons Journal: Dtsch Arztebl Int Date: 2018-09-03 Impact factor: 5.594
Authors: Peter T Campbell; Christina C Newton; Neal D Freedman; Jill Koshiol; Michael C Alavanja; Laura E Beane Freeman; Julie E Buring; Andrew T Chan; Dawn Q Chong; Mridul Datta; Mia M Gaudet; J Michael Gaziano; Edward L Giovannucci; Barry I Graubard; Albert R Hollenbeck; Lindsey King; I-Min Lee; Martha S Linet; Julie R Palmer; Jessica L Petrick; Jenny N Poynter; Mark P Purdue; Kim Robien; Lynn Rosenberg; Vikrant V Sahasrabuddhe; Catherine Schairer; Howard D Sesso; Alice J Sigurdson; Victoria L Stevens; Jean Wactawski-Wende; Anne Zeleniuch-Jacquotte; Andrew G Renehan; Katherine A McGlynn Journal: Cancer Res Date: 2016-10-15 Impact factor: 12.701