Huan Song1, Maria Held2, Sven Sandin3, Hilpi Rautelin4, Mats Eliasson5, Stefan Söderberg6, Göran Hallmans7, Lars Engstrand8, Olof Nyrén3, Weimin Ye3. 1. Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden. Electronic address: huan.song@ki.se. 2. Department of Clinical Chemistry, Hallands Sjukhus Halmstad, Halmstad, Sweden. 3. Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden. 4. Department of Medical Sciences, Clinical Microbiology, Uppsala University, Uppsala, Sweden; Department of Bacteriology and Immunology, Haartman Institute, University of Helsinki, Helsinki, Finland. 5. Sunderby Research Unit, Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden. 6. Cardiology and Heart Centre, Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden. 7. Nutritional Research, Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden. 8. Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden.
Abstract
BACKGROUND & AIMS: Atrophic corpus gastritis (ACG) is believed to be an early precursor of gastric adenocarcinoma. We aimed to investigate trends of ACG in Northern Sweden, from 1990 through 2009, and to identify possible risk factors. METHODS: We randomly selected serum samples collected from 5284 participants in 1990, 1994, 1999, 2004, and 2009, as part of the population-based, cross-sectional Northern Sweden Multinational Monitoring of Trends and Determinants in Cardiovascular Disease study (ages, 35-64 y). Information was collected on sociodemographic, anthropometric, lifestyle, and medical factors using questionnaires. Serum samples were analyzed for levels of pepsinogen I to identify participants with functional ACG; data from participants with ACG were compared with those from frequency-matched individuals without ACG (controls). Blood samples were analyzed for antibodies against Helicobacter pylori and Cag pathogenicity island protein A. Associations were estimated with unconditional logistic regression models. RESULTS: Overall, 305 subjects tested positive for functional ACG, based on their level of pepsinogen I. The prevalence of ACG in participants age 55 to 64 years old decreased from 124 per 1000 to 49 per 1000 individuals between 1990 and 2009. However, the prevalence of ACG increased from 22 per 1000 to 64 per 1000 individuals among participants age 35 to 44 years old during this time period. Cag pathogenicity island protein A seropositivity was associated with risk for ACG (odds ratio, 2.29; 95% confidence interval, 1.69-3.12). Other risk factors included diabetes, low level of education, and high body mass index. The association between body mass index and ACG was confined to individuals age 35 to 44 years old; in this group, overweight and obesity were associated with a 2.8-fold and a 4.7-fold increased risk of ACG, respectively. CONCLUSIONS: Among residents of Northern Sweden, the prevalence of ACG increased from 1990 through 2009, specifically among adults age 35 to 44 years old. The stabilizing seroprevalence of H pylori and the increasing prevalence of overweight and obesity might contribute to this unexpected trend. Studies are needed to determine whether these changes have affected the incidence of gastric cancer.
BACKGROUND & AIMS:Atrophic corpus gastritis (ACG) is believed to be an early precursor of gastric adenocarcinoma. We aimed to investigate trends of ACG in Northern Sweden, from 1990 through 2009, and to identify possible risk factors. METHODS: We randomly selected serum samples collected from 5284 participants in 1990, 1994, 1999, 2004, and 2009, as part of the population-based, cross-sectional Northern Sweden Multinational Monitoring of Trends and Determinants in Cardiovascular Disease study (ages, 35-64 y). Information was collected on sociodemographic, anthropometric, lifestyle, and medical factors using questionnaires. Serum samples were analyzed for levels of pepsinogen I to identify participants with functional ACG; data from participants with ACG were compared with those from frequency-matched individuals without ACG (controls). Blood samples were analyzed for antibodies against Helicobacter pylori and Cag pathogenicity island protein A. Associations were estimated with unconditional logistic regression models. RESULTS: Overall, 305 subjects tested positive for functional ACG, based on their level of pepsinogen I. The prevalence of ACG in participants age 55 to 64 years old decreased from 124 per 1000 to 49 per 1000 individuals between 1990 and 2009. However, the prevalence of ACG increased from 22 per 1000 to 64 per 1000 individuals among participants age 35 to 44 years old during this time period. Cag pathogenicity island protein A seropositivity was associated with risk for ACG (odds ratio, 2.29; 95% confidence interval, 1.69-3.12). Other risk factors included diabetes, low level of education, and high body mass index. The association between body mass index and ACG was confined to individuals age 35 to 44 years old; in this group, overweight and obesity were associated with a 2.8-fold and a 4.7-fold increased risk of ACG, respectively. CONCLUSIONS: Among residents of Northern Sweden, the prevalence of ACG increased from 1990 through 2009, specifically among adults age 35 to 44 years old. The stabilizing seroprevalence of H pylori and the increasing prevalence of overweight and obesity might contribute to this unexpected trend. Studies are needed to determine whether these changes have affected the incidence of gastric cancer.
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