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Reports of polyp detection in observational studies using the water method
| Reference | Indications | Design/Sedation | Polyps Detection Rate |
| Leung et al3 | Screening and surveillance | OS/On-demand | Sedated 7/21 (33.3%) |
| n=44 | Unsedated 12/23 (52.2%) | ||
| Leung et al6 | Screening or surveillance | OS/½ full-dose | Water, ½ dose 24/43 (55.8%) |
| n=75 | Water, full-dose 14/32 (43.8%) | ||
| Summary comment | Overall polyp detection rate was 57/119 (48%). |
OS, observational study; n, number of patients in the study.
