Observational Study
Copyright ©The Author(s) 2021.
World J Gastrointest Endosc. Dec 16, 2021; 13(12): 659-672
Published online Dec 16, 2021. doi: 10.4253/wjge.v13.i12.659
Table 7 Self-reported tolerability of bowel preparations according to volume, n (%)

Total (n = 1815)
High volume (n = 871)
Low volume (n = 944)
P value1
Global tolerance, VAS score2, median (interquartile range)7 (5-9)7 (5-9)7 (5-9)0.627
Incomplete preparation (< 75% of PEG assumed)116 (6.6)67 (7.9)49 (5.4)0.0323
Any symptom during preparation860 (47.4)369 (42.4)491 (52)< 0.0013
Bloating363 (20)183 (21)180 (19.1)0.301
Nausea480 (26.5)187 (21.5)293 (31)< 0.0013
Vomiting174 (9.6)55 (6.3)119 (12.6)< 0.0013
Abdominal pain281 (15.5)104 (11.9)177 (18.8)< 0.0013