Comparison of analgesic efficacy between rectus sheath blockade, intrathecal morphine with bupivacaine, and intravenous patient-controlled analgesia in patients undergoing robot-assisted laparoscopic prostatectomy: a prospective, observational clinical study

Table 3 Linear trend for cumulative IV-PCA drug consumption during POD 1 among the IV-PCA vs. RSB vs. ITMB groups

	ß	95% Confidence interval	p
*Cumulative IV-PCA drug consumption during POD 1 (mL)*
Adjusted for age, BMI, DM, hypertension, and intraoperative remifentanil consumption
Linear trend among the IV-PCA vs. RSB vs. ITMB groups	−10.715	− 16.403 - -5.026	< 0.001

Abbreviation: IV-PCA Intravenous patient-controlled analgesia, POD Postoperative day, RSB Rectus sheath block, ITMB Intrathecal morphine with bupivacaine, BMI Body mass index, DM Diabetes mellitus

ISSN: 1471-2253