Table 2.

Discordance between UBT and histopathology findings among different patient age groups

Age (years)	13C-UBT			14C-UBT			P
	# FP	# FN	Discordance [% (n/N)]	# FP	# FN	Discordance [% (n/N)]
18–30	10	0	29.4 (10/34)	3	0	8.3 (3/36)	0.032
31–50	15	4	14.2 (19/134)	12	4	10.2 (16/157)	0.367
> 50	3	3	12.2 (6/49)	19	2	28.4 (21/74)	0.045

The distribution of discordant findings between both UBT assays in each age group was tested using the Fisher’s exact test, with a P value less than 0.05 considered as statistically significant

FP false positive; FN false negative