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Int J Biomed Sci. 2013 Dec;9(4):224-9.

Seroepidemiology of helicobacter pylori infection in pregnant women in rural durango, Mexico.

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Biomedical Research Laboratory, Faculty of Medicine and Nutrition, Juárez University of Durango State, Avenida Universidad S/N. 34000 Durango, Dgo, Mexico.


The seroepidemiology of Helicobacter pylori infection in pregnant women in Durango, Mexico is largely unknown. The prevalence of anti-H. pylori IgG antibodies was examined in 343 pregnant women living in rural areas in 7 municipalities in Durango State, Mexico, using enzyme-linked immunosorbent assays (ELISA). A correlation of H. pylori seropositivity with socio-demographic, obstetric and behavioral characteristics of pregnant women was also assessed. In total, 179 (52.2%) of the 343 pregnant women (mean age, 24.2 ± 5.9 years) had H. pylori IgG antibodies, 75 (41.9%) of whom had H. pylori IgG antibody levels higher than 100 U/mL. The seroprevalence of H. pylori infection varied from 33.3% to 65% among municipalities. In contrast, the seroprevalence was comparable among women regardless their age, educational level, occupation, socioeconomic status, animal contacts, foreign travel, eating habits, contact with soil, crowding, sanitary conditions at home and educational level of the head of their families. Multivariant analysis of socio-demographic and behavioral variables showed that H. pylori seropositivity was associated with municipality (OR=1.12; 95% CI: 1.01-1.24; P=0.02). Of the obstetric characteristics, the seroprevalence of H. pylori infection increased significantly with the number of pregnancies and deliveries but not with the number of cesarean sections or miscarriages. Rural pregnant women in Durango had a lower seroprevalence of H. pylori infection than those from populations in developing countries. Results support a variability of H. pylori seroprevalence within a region. Further research at a municipal level might help to understand the epidemiology of H. pylori infection.


Epidemiology; cross-sectional study; infection; risk factors; serology


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