OBJECTIVE: Low serum pepsinogen I (PGI) and low pepsinogen I/pepsinogen II ratio (PGI/II ratio) are markers of gastric fundic atrophy. We aimed to prospectively test the association between serum PGI/II ratio and risks of gastric non-cardia adenocarcinoma, gastric cardia adenocarcinoma, and oesophageal squamous cell carcinoma (OSCC). DESIGN: Case-cohort study nested in a prospective cohort with over 15 years of follow-up. SETTING: Rural region of the People's Republic of China. SUBJECTS: Men and women aged 40-69 years at study baseline. MAIN OUTCOME MEASURES: Adjusted hazard ratios and 95% confidence intervals for the association between serum PGI/II ratio and cancer risk. RESULTS: Compared to subjects with PGI/II ratio of >4, those with <or=4 had hazard ratios (HRs) (95% CIs) of 2.72 (1.77 to 4.20) and 2.12 (1.42 to 3.16) for non-cardia and cardia gastric adenocarcinomas, respectively. Risk of both cancers was also increased when we used other cut points ranging from 3 to 6, or quartile models, or nonlinear continuous models. Risk of OSCC was marginally increased in those with PGI/II ratio <or=4, with HR (95% CI) of 1.56 (0.99 to 2.47), but quartile models and continuous models showed no increased risk. The nonlinear continuous models suggested that any single cut point collapsed subjects with dissimilar gastric adenocarcinoma risks, and that using cut points was not an efficient use of data in evaluating these associations. CONCLUSION: In this prospective study, we found similar and significantly increased risks of non-cardia and cardia gastric adenocarcinomas in subjects with low PGI/II ratio but little evidence for an association with the risk of OSCC.
OBJECTIVE: Low serum pepsinogen I (PGI) and low pepsinogen I/pepsinogen II ratio (PGI/II ratio) are markers of gastric fundic atrophy. We aimed to prospectively test the association between serum PGI/II ratio and risks of gastric non-cardia adenocarcinoma, gastric cardia adenocarcinoma, and oesophageal squamous cell carcinoma (OSCC). DESIGN: Case-cohort study nested in a prospective cohort with over 15 years of follow-up. SETTING: Rural region of the People's Republic of China. SUBJECTS:Men and women aged 40-69 years at study baseline. MAIN OUTCOME MEASURES: Adjusted hazard ratios and 95% confidence intervals for the association between serum PGI/II ratio and cancer risk. RESULTS: Compared to subjects with PGI/II ratio of >4, those with <or=4 had hazard ratios (HRs) (95% CIs) of 2.72 (1.77 to 4.20) and 2.12 (1.42 to 3.16) for non-cardia and cardia gastric adenocarcinomas, respectively. Risk of both cancers was also increased when we used other cut points ranging from 3 to 6, or quartile models, or nonlinear continuous models. Risk of OSCC was marginally increased in those with PGI/II ratio <or=4, with HR (95% CI) of 1.56 (0.99 to 2.47), but quartile models and continuous models showed no increased risk. The nonlinear continuous models suggested that any single cut point collapsed subjects with dissimilar gastric adenocarcinoma risks, and that using cut points was not an efficient use of data in evaluating these associations. CONCLUSION: In this prospective study, we found similar and significantly increased risks of non-cardia and cardia gastric adenocarcinomas in subjects with low PGI/II ratio but little evidence for an association with the risk of OSCC.
Authors: W J Blot; J Y Li; P R Taylor; W Guo; S Dawsey; G Q Wang; C S Yang; S F Zheng; M Gail; G Y Li Journal: J Natl Cancer Inst Date: 1993-09-15 Impact factor: 13.506
Authors: W C You; W J Blot; L Zhang; R W Kneller; J Y Li; M L Jin; Y S Chang; X R Zeng; L Zhao; J F Fraumeni Journal: Cancer Epidemiol Biomarkers Prev Date: 1993 Mar-Apr Impact factor: 4.254
Authors: Michael B Cook; Sanford M Dawsey; Lena Diaw; Martin J Blaser; Guillermo I Perez-Perez; Christian C Abnet; Philip R Taylor; Demetrius Albanes; Jarmo Virtamo; Farin Kamangar Journal: Cancer Epidemiol Biomarkers Prev Date: 2010-07-20 Impact factor: 4.254
Authors: Tram Kim Lam; Neal D Freedman; Jin-Hu Fan; You-Lin Qiao; Sanford M Dawsey; Philip R Taylor; Christian C Abnet Journal: Am J Clin Nutr Date: 2013-09-11 Impact factor: 7.045
Authors: M Dinis-Ribeiro; M Areia; A C de Vries; R Marcos-Pinto; M Monteiro-Soares; A O'Connor; C Pereira; P Pimentel-Nunes; R Correia; A Ensari; J M Dumonceau; J C Machado; G Macedo; P Malfertheiner; T Matysiak-Budnik; F Megraud; K Miki; C O'Morain; R M Peek; T Ponchon; A Ristimaki; B Rembacken; F Carneiro; E J Kuipers Journal: Virchows Arch Date: 2011-12-22 Impact factor: 4.064