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Optimization of 13C‐urea breath test threshold levels for the detection of Helicobacter pylori infection in a national referral laboratory

Threshold values for 13C‐urea breath test (13C‐UBT) positivity may be affected by various sociodemographic, host, bacterial, and laboratory factors. Manufacturer recommended cutoffs for 13C‐UBT assays may not be applicable in all settings. Optimizing 13C‐UBT cutoffs may have profound public health ramifications. We aimed to determine the optimal threshold for 13C‐UBT positivity in our population.