Pediatric endoscopy in times of pandemic: A nationwide retrospective analysis.

Background: Gastrointestinal endoscopy is a procedure that carries an increased risk of transmission of SARS-CoV-2 infection to medical staff. In patients, COVID-19 is a risk factor for adverse events of medical procedures. This study analyzed the real-life risk of, and factors contributing to, infection transmission to endoscopic personnel, and possible adverse events of the endoscopy procedure and anesthesia in children with COVID-19.

Effect of Helicobacter Pylori Infection on Nutritional Status in Polish Teenagers.

Purpose: Data on an association between (. ) and nutritional status in children are conflicting. We designed a large-sampled prospective community-based study to examine the differences in average body indices among Polish teenagers depending on their .

Prevalence of Helicobacter pylori infection among junior high school students in Grudziadz, Poland.

Background: The purpose of the study was to assess the prevalence of Helicobacter pylori infection among the junior high school students in city Grudziądz, Poland.

Materials And Methods: A prospective cross-sectional study among second junior high school students was conducted from September 2008 to June 2015 during seven consecutive school years. The studied group was 3241 students 13-17 years old.

Assessment of coeliac disease prevalence in patients with Down syndrome in Poland - a multi-centre study.

Introduction: The results of studies assessing whether patients with Down syndrome have increased risk of coeliac disease are contradictory. The prevalence of coeliac disease in patients with Down syndrome is estimated at a wide range between 1% to as much as 18.6%.