期刊
INTERNATIONAL JOURNAL OF CANCER
卷 147, 期 3, 页码 777-784出版社
WILEY
DOI: 10.1002/ijc.32790
关键词
body mass index; stomach neoplasms; Helicobacter pylori; biomarkers; noncardia gastric cancer
类别
资金
- National Cancer Institute [R01 CA174853, UM1 CA173640, UM1 CA182910]
- National Research Foundation of Korea [NRF-2016R1A2B4014552]
- NATIONAL CANCER INSTITUTE [ZIACP000112] Funding Source: NIH RePORTER
The association between body mass index (BMI) and noncardia gastric cancer (NCGC) risk remains controversial. The purpose of our study was to examine the association of BMI with NCGC risk with consideration of Helicobacter pylori (HP) biomarkers. This international nested case-control study, composed of 1,591 incident NCGC cases and 1,953 matched controls, was established from eight cohorts in China, Japan and Korea, where the majority of NCGCs are diagnosed worldwide. HP antibody biomarkers were measured in blood collected at cohort enrollment by multiplex serology. The NCGC risk according to baseline BMI was estimated using logistic regression to produce odds ratios (ORs) and 95% confidence intervals (CIs). We found a U-shaped association between BMI category and NCGC risk. Compared to those with reference BMI (22.6-25.0 kg/m(2)), those with lower and higher BMI had an increased NCGC risk (BMI <18.5 kg/m(2), OR = 1.56, 95% CI = 1.04-2.34; BMI >27.5 kg/m(2), OR = 1.48, 95% CI = 1.15-1.91; adjusted for age, sex and smoking). The U-shaped association was persistent among subjects with HP infection and high-risk biomarkers (HP+ CagA+: BMI <18.5 kg/m(2), OR = 1.60, 95% CI = 1.00-2.55; BMI >27.5 kg/m(2), OR = 1.59, 95% CI = 1.21-2.11; and Omp+ HP0305+: BMI <18.5 kg/m(2), OR = 1.88, 95% CI = 1.04-3.42; BMI >27.5 kg/m(2), OR = 1.70, 95% CI = 1.20-2.42, respectively). Our study provides evidence of significantly increased NCGC risk among individuals with low or high BMI, including in subjects with high-risk HP biomarkers (HP+ CagA+, Omp+ HP0305+) in the high-risk area of East Asia.
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