Skip to main content

Table 4 Multivariable linear regression model

From: Predictive factors of postoperative fentanyl consumption in patients with inflammatory bowel disease: a retrospective cohort study

Variable

Partial regression coefficient

95% CI

(lower, upper)

Standardized β

P-value

Intercept

3.399

3.074, 3.724

0

< 0.0001

Ulcerative colitis, UC =1, CD = 0

0.129

0.065, 0.194

0.270

< 0.001

Droperidol concentration in the PCA solution, mcg/20 mcg of fentanyl

−0.021

− 0.033, − 0.009

−0.228

< 0.001

Intraoperative fentanyl consumption per kilogram of body weight, mcg/kg

0.023

0.009, 0.036

0.212

0.001

Age, y

−0.007

− 0.011, − 0.002

−0.201

0.004

Current smoking, yes =1, no = 0

0.111

0.025, 0.197

0.166

0.011

Diabetes mellitus, yes =1, no = 0

−0.204

−0.364, − 0.043

−0.164

0.013

Use of supplementary analgesics, yes =1, no = 0

0.066

0.007, 0.125

0.145

0.028

Administration of biologics during the month before surgery, yes =1, no = 0

0.084

0.008, 0.160

0.146

0.031

Preoperative use of opioids, yes =1, no = 0

0.066

−0.024, 0.156

0.093

0.152

  1. Abbreviations: CD Crohn’s disease, CI Confidence interval, PCA Patient-controlled analgesia, UC Ulcerative colitis