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Table 4 Factors associated with postoperative complications (Adjusted multivariable analysis)

From: The effects of preoperative alcohol, tobacco, and psychological stress on postoperative complications: a prospective observational study

  Model 1 Model 2 Model 3 (male) Model 4 (female)
  OR (95% CI) p value OR (95% CI) p value OR (95% CI) p value OR (95% CI) p value
Sex (male) 1.86 (1.00–3.49) 0.049* 1.63 (0.85–3.13) 0.14     
Age/10 1.27 (0.99–1.64) 0.054 1.34 (1.05–1.74) 0.020* 1.30 (0.91–1.92) 0.15 1.35 (0.92–2.02) 0.12
BMI (kg/m2) 0.96 (0.89–1.04) 0.37 0.99 (0.91–1.07) 0.75 1.03 (0.91–1.16) 0.66 0.93 (0.81–1.04) 0.21
ASA-PS IIa 1.55 (0.72–3.58) 0.27 1.35 (0.62–3.13) 0.46 1.78 (0.45–11.8) 0.45 1.49 (0.54–4.28) 0.45
ASA-PS III a 1.20 (0.22–5.10) 0.82 0.75 (0.10–3.60) 0.74 0.70 (0.03–9.07) 0.79 1.26 (0.06–10.5) 0.85
sAs 1.10 (0.90–1.38) 0.37 1.09 (0.88–1.37) 0.44 1.08 (0.81–1.47) 0.62 1.10 (0.81–1.57) 0.56
Anesthesia time (hours) 1.55 (1.35–1.80) p < 0.001* 1.51 (1.32–1.75) p < 0.001* 1.47 (1.23–1.77) p < 0.001* 1.62 (1.30–2.06) p < 0.001*
Unchanged drinking habit b 0.93 (0.41–2.07) 0.87       
Improved drinking habit b 0.87 (1.45–1.66) 0.66       
Unchanged smoking habit b 1.51 (0.32–5.18) 0.56       
Improved smoking habit b 0.91 (0.41–1.95) 0.82       
K6 score 1.08 (1.00–1.16) 0.033* 1.08 (1.00–1.15) 0.041* 1.04 (0.93–1.16) 0.52 1.12 (1.02–1.23) 0.017*
AUDIT score    1.00 (0.95–1.06) 0.88 1.00 (0.94–1.06) 0.99 1.02 (0.88–1.13) 0.76
FTND score    1.08 (0.92–1.25) 0.31 1.12 (0.95–1.31) 0.18 0.73 (0.37–1.16) 0.21
R2 18%   17%   16%   17%  
AUC 81%   80%   79%   78%  
Accuracy 89%   89%   83%   93%  
  1. OR odds ratio; CI confidence interval; BMI body mass index; ASA-PS the American Society of Anesthesiologists physical status classification; sAs Surgical Apgar score; K6 6-item Kessler Psychological Distress Scale; AUDIT Alcohol Use Disorders Identification Test; FTND Fagerström Test for Nicotine Dependence; AUC area under the curve
  2. aOdds ratio of ASA-PS I
  3. bOdds ratio of “no drinking/smoking habits for the preceding year leading up to surgical decision-making”
  4. *p < 0.05