Table 1.

Main screening outcomes of CRC screening before and after the disruption of the CRC screening program in the Metropolitan Area of Barcelona.

	2020						2019
Screening outcome	January–March		September–December		Global		January–March		September–December		Global
	N	% (95% CI)	N	% (95% CI)	N	% (95% CI)	N	% (95% CI)	N	% (95% CI)	N	% (95% CI)
Participation to FIT	55,846	39.3 (38.9–39.7)	91,105	45.7 (45.4–46)	147,969	43.6 (43.3–43.8)	68,115	43.5 (43.1–43.8)	94,730	41.5 (41.2–41.9)	244,531	41.4 (41.2–41.6)
Adherence to colonoscopy	1054	81.4 (78.9–83.7)	1633	88 (86.3–89.5)	2719	87.8 (86.5–89)	1485	89 (87.3–90.6)	1988	88.9 (87.5–90.3)	5140	89.3 (88.4–90.2)
CRC detection rate (‰)	22,275	0.99 (0.6–1.5)	41,648	1.5 (1.2–1.9)	64,447	1.3 (1.1–1.6)	29,653	1.8 (1.3–2.3)	39,347	1.5 (1.1–1.9)	101,418	1.5 (1.3–1.8)
Advanced adenoma detection rate (‰)	22,275	16.3 (14.6–18)	41,648	13.7 (12.6–14.8)	64,447	14.7 (13.8–15.7)	29,653	18.6 (17.1–20.3)	39,347	18.6 (16.3–18.9)	101,418	18.3 (17.5–19.1)
Advanced neoplasia detection rate (‰)	22,275	17.2 (15.3–19.5)	41,648	15.2 (13.8–16.8)	64,447	16 (14.8–17.3)	29,653	20.4 (18.4–22.6)	39,347	19.1 (17.4–20.8)	101,418	19.8 (18.8–20.9)

N values refer to the denominator of the screening outcomes: screening invitations, individuals with a positive FIT, and screenees.