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Table 4 Spearman’s rho rank correlation coefficient (Rho) between total mg of ropivacaine administered epidurally and OCTT

From: Gastrointestinal motility following thoracic surgery: the effect of thoracic epidural analgesia. A randomised controlled trial

Ropivacaine (mg)

OCTT1

OCTT3

Intraoperatively

Rho = −0.49

p = 0.005

Rho = −0.31

p = 0.093

1st postoperative day

Rho = −0.32

p = 0.083

Rho = −0.4

p = 0.03

3rd postoperative day

Rho = −0.29

p = 0.12

Rho = −0.43

p = 0.02

  1. Values close to +1 or −1 indicate strong association between variables. p values <0.05 represent statistically significant results. OCTT 1 oro-ceacal transit time the first postoperative day, OCTT 3 oro-ceacal transit time the third postoperative day