Supplementary Table 4.

The Number of Colonoscopies Performed in 2019 and 2020 by Procedure Indication, and the Percentage Change in 2020 Compared With 2019

	Screening			Surveillance			Diagnostic			FIT positive			Unknown
	2019 (n)	2020 (n)	Change (%)	2019 (n)	2020 (n)	Change (%)	2019 (n)	2020 (n)	Change (%)	2019 (n)	2020 (n)	Change (%)	2019 (n)	2020 (n)	Change (%)
January	1483	1648	11.1	1445	1616	11.8	4821	4981	3.3	770	844	9.6	193	186	−3.6
February	1396	1579	13.1	1290	1567	21.5	4391	4609	5.0	813	883	8.6	235	222	−5.5
March	1491	843	−43.5	1479	883	−40.3	4961	3240	−34.7	1306	1118	−14.4	281	156	−44.5
April	1587	108	−93.2	1494	47	−96.9	5091	1313	−74.2	1627	585	−64.0	237	15	−93.7
May	1578	217	−86.2	1547	242	−84.4	5122	2200	−57.0	1545	530	−65.7	223	31	−86.1
June	1441	590	−59.1	1484	586	−60.5	4512	3409	−24.4	1405	632	−55.0	222	116	−47.7
July	1592	759	−52.3	1715	727	−57.6	4887	3863	−21.0	1367	972	−28.9	219	95	−56.6
August	1628	675	−58.5	1701	832	−51.1	4825	3819	−20.8	1359	1147	−15.6	187	131	−29.9
September	1464	1000	−31.7	1430	1076	−24.8	4640	4578	−1.3	1241	1268	2.2	192	158	−17.7
October	1606	1206	−24.9	1676	1369	−18.3	5240	5037	−3.9	1292	1225	−5.2	196	164	−16.3
November	1427	1060	−25.7	1472	1195	−18.8	4342	4420	1.8	960	1181	23.0	163	153	−6.1
December	1412	908	−35.7	1358	1016	−25.2	4359	4314	−1.0	1001	1363	36.2	173	156	−9.8
Total	18,105	10,593	−41.5	18,091	11,156	−38.3	57,191	45,783	−19.9	14,686	11,748	−20.0	2521	1583	−37.2
Mean	1509	883		1508	930		4766	3815		1224	979		210	132
SD	81	448		127	465		300	1082		265	272		31	58