| Postoperative complications | M-W U/x2 test |  |  | |
---|---|---|---|---|---|
 | No (642) | Yes (79) | p value | OR (95% CI) | p value |
BMI (kg/m2) | 23 (21–25) | 23 (21–25) | 0.91 | 0.96 (0.89–1.03) | 0.26 |
ASA-PS I | 202 | 10 | 0.002* | II/I 1.89 (0.93–4.15) | 0.077 |
ASA-PS II | 417 | 66 | III/I 1.37 (0.28–5.18) | 0.67 | |
ASA-PS III | 23 | 3 | III/II 0.73 (0.17–2.21) | 0.61 | |
Preoperative use of psychotropics | 74/615 (12%) | 11/78 (14%) | 0.58 | 0.95 (0.47–1.93) | 0.89 |
Anesthesia time (minutes. Hours in OR) | 169 (127–234) | 298 (210–389) | p < 0.001* | 1.53 (1.37–1.73) | p < 0.001* |
sAs | 8 (7–9) | 7 (6–8) | 0.001* | 0.82 (0.70–0.97) | 0.019* |
Drinking (lifetime) | 460/632 (73%) | 54/78 (69%) | 0.51 | 0.79 (0.46–1.41) | 0.42 |
No drinking habit (the preceding year) | 249/632 (39%) | 30/78 (38%) | 0.87 | 0.99 (0.58–1.69) | 0.98 |
Unchanged drinking habit | 146/376 (39%) | 13/47 (28%) | 0.14 | 0.74 (0.34–1.53) | 0.42 |
Improved drinking habit | 230/376 (61%) | 34/47 (72%) | 0.14 | 0.74 (0.69–2.20) | 0.47 |
AUDIT score | 1 (0–5) | 2 (0–8) | 0.13 | 1.23 (0.97–1.07) | 0.45 |
AUDIT score of 8 or more | 93/596 (16%) | 18/77 (23%) | 0.084 | 1.48 (0.77–2.76) | 0.24 |
Smoking (lifetime) | 225/616 (37%) | 38/77 (49%) | 0.029* | 1.39 (0.80–2.39) | 0.24 |
No smoking habit (the preceding year) | 492/616 (80%) | 57/77 (74%) | 0.23 | 0.68 (0.38–1.27) | 0.22 |
Unchanged smoking habit | 38/122 (31%) | 3/18 (17%) | 0.34 | 0.79 (0.18–2.46) | 0.71 |
Improved smoking habit | 84/122 (69%) | 15/18 (83%) | 0.34 | 1.48 (0.74–2.83) | 0.26 |
FTND score | 0 (0–0) | 0 (0–0) | 0.44 | 1.10 (0.96–1.25) | 0.15 |
FTND score of 3 or more | 80/611 (13%) | 12/75 (16%) | 0.49 | 0.79 (0.40–1.68) | 0.53 |
K6 score | 3 (1–6) | 4 (1–6) | 0.55 | 1.07 (1.00–113) | 0.040* |
K6 score of 8 or more | 94/615 (15%) | 14/79 (18%) | 0.57 | 1.51 (0.77–2.80) | 0.22 |
HADS score | 8 (4–13) | 8 (5–14) | 0.96 | 1.02 (0.98–1.06) | 0.24 |
HADS score of 20 or more | 33/611 (5.5%) | 7/79 (8.9%) | 0.22 | 1.97 (0.76–4.52) | 0.15 |
Length of stay after surgery | 8 (5–12) | 21 (12–38) | p < 0.001* |  |  |