From: Comparison of several methods for pain management after video-assisted thoracic surgery for pneumothorax: an observational study
Variables
Odd ratio [95%CI]
P
Postoperative tramadol use
0.04 [0.002–1.09]
0.057
Serratus catheter
0.09 [0.01–0.79]
0.03
Single-port surgery
0.07 [0.005–1.01]
0.052