Limitations of urease test in diagnosis of pediatric Helicobacter pylori infection

Figure 1 The positivity rate and positive timing of the urease test both in the antrum and body according to age. The positivity rate of the urease test in the antrum was higher in 20-29 years group than that in other three age groups, and the positivity rate of the urease test in the body decreased with increasing age (P < 0.0001). The highest positivity timing was within 1 h in the 20-29 years group, and within 6-24 h in children (P < 0.0001)[20].