Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Mean VAS scores at corresponding measurement points during and after colonoscopy examinations in CO2 and air insufflation groups. VAS scores for CO2 insufflation were significantly better than those for air insufflation (dP < 0.001, ANOVA for repeated measures). aP < 0.05, bP < 0.01 vs the CO2 group at each measurement point by Wilcoxon rank sum test. VAS: Visual analogue scale.
