Nonclosure of the Peritoneum during Appendectomy May Cause Less Postoperative Pain: A Randomized, Double-Blind Study

Figure 2

Postoperative VAS scores for pain. VAS scores for pain at postoperative day 1 are also shown. Each group includes 56 patients. Square plots show mean values (3.6 vs. 4.1) and horizontal lines show confidence intervals (3.16–4.04 vs. 3.6–4.6) at 95% level. value calculated using a Mann–Whitney U test.