From: A re-testing range is recommended for 13C- and 14C-urea breath tests for Helicobacter pylori infection in China
Age (years)
13C-UBT
14C-UBT
P
# FP
# FN
Discordance
[% (n/N)]
18–30
10
0
29.4 (10/34)
3
8.3 (3/36)
0.032
31–50
15
4
14.2 (19/134)
12
10.2 (16/157)
0.367
> 50
12.2 (6/49)
19
2
28.4 (21/74)
0.045