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Copyright ©The Author(s) 2021.
World J Gastrointest Endosc. Dec 16, 2021; 13(12): 619-627
Published online Dec 16, 2021. doi: 10.4253/wjge.v13.i12.619
Table 1 Study characteristics (including evaluated adenoma detection rate result)
Ref.
Country
Study design
Investigated blocks
Physician (Fellow inclusion: O, X)
Bowel preparation
No. of a.m./p.m. procedure
ADR (%)
Sanaka et al[18], 2009United StatesRetrospectiveFull dayCertified endoscopist (O)Single PEG 4 L or oral fleet1748/1871AM (29.3); PM (25.3)
Chan et al[19], 2009United StatesProspectiveFull dayCertified endoscopist (O)Single PEG 4 L or oral fleet432/15AM (49.2); PM (45.1)
Freedman et al[21], 2011United StatesRetrospectiveFull dayCertified endoscopist (X)Split dose PEG 4 L756/730AM (41); PM (44)
Long et al[22], 2011United StatesRetrospectiveFull dayCertified endoscopist (X)Single PEG 4 L2219/120224.9
Lurix et al[23], 2012United StatesRetrospectiveHalf day. Full dayCertified endoscopist (O)Single or Split PEG 4 L2148/937AM (30); PM (33)
Paeck et al[39], 2013South KoreaRetrospectiveHalf day. Full dayCertified endoscopist (O)Single PEG 4 L420/881AM (42.3); PM (34.7)
Subramanian et al[40], 2015United KingdomRetrospectiveHalf day. Full dayCertified endoscopist (O)Single PEG. Sodium picosulphate1091/994 (evening:489)27.6
Singh et al[41], 2016United StatesRetrospectiveFull dayCertified endoscopist (O)Split dose PEG 4 L1574/731AM (23.1); PM (18.3)
Teng et al[42], 2016SingaporeProspectiveFull dayCertified endoscopist (X)Single PEG (morning); Split-dose PEG (afternoon)270/263AM (29); PM (21)
Lei et al[27], 2020ChinaRetrospectiveFull dayCertified endoscopist (O)Split-dose PEG261/223AM (36); PM (35)