Interval Cancers in a Population-Based Screening Program for Colorectal Cancer in Catalonia, Spain

Table 1

Last screening result according to the test used (gFOBT or FIT)^‡ from 2000 to 2010.

	gFOBT		FIT
		%		%
Negative test result	24,072	93.1	4,281	92.7
Indeterminate test result	1,003	3.9	50	1.1
Positive test result	787	3.0	287	6.0
Positive test with no further assessment^*	58	0.2	9	0.2
Negative colonoscopy result	368	1.4	105	2.3
Low-risk adenoma	48	0.2	24	0.5
High-risk adenoma	225	0.9	122	2.6
CRC	77	0.3	20	0.4
Overall	25,862		4,618

gFOBT was the only screening test used in 1st–3rd round. For the fourth round the gFOBT was offered to individuals in 10 Basic Health Areas and the FIT was offered to individuals in two Basic Health Areas; ^*11 individuals using gFOBT and 7 individuals using FIT were not referred to further assessment because they had a recent colonoscopy.