RESULTS	However , differences in percentages of patients who received complete , unsedated colonoscopy between the water group ( 74.1 % ) and air group ( 62.1 % ) did not reach statistical significance ( P = .23 ) ; the percentage of successful cecal intubations was lower in the water group ( 82.8 % ) than in the air group ( 96.5 % ; P = .03 ) because of poor visibility .\