The Scientific World Journal / 2014 / Article / Tab 3 / Clinical Study
The Effect of Local Injections of Bupivacaine Plus Ketamine, Bupivacaine Alone, and Placebo on Reducing Postoperative Anal Fistula Pain: A Randomized Clinical Trial Table 3 VAS frequency among groups.
VAS test Group Mean VAS at transfer to ward Group 1 0.13 ± 0.352 Group 2 0.20 ± 0.414 Group 3 0 ± 0.000 Group 4 0.13 ± 0.516 Total 0.12 ± 0.372 VAS 2 hours later Group 1 2.0 ± 0.655 Group 2 1.20 ± 0.414 Group 3 0.40 ± 0.507 Group 4 1.60 ± 0.507 Total 1.30 ± 0.788 VAS 6 hours later Group 1 4.0 ± 0.926 Group 2 1.47 ± 0.516 Group 3 1.2 ± 0.561 Group 4 3.27 ± 0.458 Total 2.48 ± 1.347 VAS 12 hours later Group 1 4.2 ± 0.561 Group 2 1.93 ± 0.458 Group 3 1.73 ± 0.594 Group 4 3.40 ± 0.507 Total 2.82 ± 1.157 VAS 24 hours later Group 1 3.4 ± 0.986 Group 2 2.2 ± 0.561 Group 3 1.53 ± 0.640 Group 4 2.87 ± 0.352 Total 2.5 ± 0.966 ANOVA test