Table 4 Multivariable logistic regression analyses for discontinuation of PCA after general surgery.

From: Risk factors for discontinuation of intravenous patient-controlled analgesia after general surgery: a retrospective cohort study

Variable

aOR (95% CI)

P-value

Age, year

1.00 (0.99, 1.01)

0.989

Female sex (vs male sex)

3.31 (2.74, 4.01)

 < 0.001

LOS after surgery, day

0.96 (0.94, 0.99)

0.001

Medical history

 DM

1.01 (0.71, 1.43)

0.975

 HTN

0.86 (0.65, 1.15)

0.303

 CKD

0.64 (0.25, 1.65)

0.354

 Heart disease

1.52 (0.94, 2.46)

0.089

 Brain disease

1.55 (0.96, 2.51)

0.074

 Liver disease

1.35 (1.00, 1.81)

0.051

Anesthesia

 General anesthesia

1

 

 Spinal anesthesia

0.00 (0.00)

0.998

ASA physical status classification

0.565

 1

1

 

 2

1.10 (0.88, 1.40)

0.433

 ≥ 3

1.18 (0.87, 1.62)

0.288

Laparoscopy (vs laparotomy)

1.12 (0.88, 1.41)

0.364

Type of surgery

 < 0.001

 Stomach

1

 

 Colon

0.96 (0.74, 1.25)

0.764

 Hepato-pancreatic-biliary

1.43 (1.06, 1.94)

0.021

 Breast

0.57 (0.37, 0.86)

0.007

 Small bowel

1.68 (1.09, 2.60)

0.019

 Transplantation

1.82 (0.63, 5.21)

0.267

 Vascular

1.38 (0.40, 4.68)

0.610

 Others

1.23 (0.94, 1.60)

0.135

PCA type

 Opioid included

1

 

 NSAID only

0.63 (0.39, 1.03)

0.066

Background infusion (vs no background infusion)

1.42 (1.04, 1.94)

0.026

Preoperative drug usage

 NSAID

0.87 (0.58, 1.31)

0.508

 Paracetamol

1.16 (0.69, 1.94)

0.590

 Opioid

0.49 (0.28, 0.85)

0.012

  1. LOS length of hospital stays, DM diabetes mellitus, HTN hypertension, CKD chronic kidney disease, ASA American Society of Anesthesiologists, PCA patient-controlled analgesia, NSAID non-steroidal anti-inflammatory drug.