Research Article

Predictors of Acute Postsurgical Pain following Gastrointestinal Surgery: A Prospective Cohort Study

Table 4

Univariate and multivariate analyses of predictors for APSP intensity.

VariablesUnadjusted β (95% CI) valueAdjusted β (95% CI) value

Gender
 MaleReference0
 Female0.15 (−0.11–0.42)0.247−0.11 (−0.46–0.23)0.518
 Age, year−0.02 (−0.03 to −0.01)0.004−0.01 (−0.03 to −0.01)0.317
 BMI−0.00 (−0.03–0.02)0.775−0.04 (−0.09–0.01)0.096
Occupation status
 No occupationReference00.152
 Occupation0.38 (0.07–0.70)0.0180.28 (−0.10–0.66)
ASA physical status
 ASA IReference0
 ASA II−0.53 (−0.88 to −0.1)0.0030.14 (−0.32–0.6)0.547
 ASA III−0.42 (−0.89–0.06)0.0880.35 (−0.29–0.98)0.285
Preoperative chronic pain
 YesReference0
 No0.29 (−0.01–0.59)0.0590.05 (−0.24–0.34)0.735
Previous surgery
 YesReference0
 No−0.17 (−0.43–0.08)0.179−0.05 (−0.30–0.20)0.694
Site of surgery
 StomachReference0
 Colorectum−0.17 (−0.44–0.09)0.204−0.25 (−0.52–0.02)0.071
 Small bowel−0.20 (−0.73–0.33)0.457−0.25 (−0.79–0.29)0.365
Type of surgery
 OpenReference0
 Laparoscopic−0.16 (−0.44–0.12)0.2590.21 (−0.10–0.52)0.189
MME consumption, mg0.07 (0.05–0.09)<0.0010.05 (0.03–0.07)<0.001
HADS: anxiety0.15 (0.12–0.18)<0.0010.12 (0.08–0.15)<0.001
HADS: depression0.12 (0.08–0.15)<0.0010.11 (−0.04–0.07)0.565
Expected postsurgical pain0.20 (0.15–0.26)<0.0010.12 (0.06–0.18)<0.001
SFQ-s0.04 (0.03–0.05)<0.0010.55 (−1.43–2.52)0.589
SFQ-l0.04 (0.03–0.06)<0.0010.56 (−1.42–2.54)0.582

BMI: body mass index; ASA: American Society of Anesthesiologists; MME: morphine milligram equivalent; HADS: Hospital Anxiety and Depression Scale; SFQ-s: Surgical Fear Questionnaire short-time consequences; and SFQ-l: Surgical Fear Questionnaire long-time consequences.