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. 2019 Jul 10;45:45–53. doi: 10.1016/j.amsu.2019.07.003

Table 2.

Postoperative complications. Data presented as number (proportion). Effect size reported as odds ratio (95%Confidence Interval).

Restrict group (n = 24) Conventional care group (n = 24) Effect size (95%CI) p value
Length of hospital stay (days) 7.0 (6.0:8.0) 8.0 (6.0:10.0) 0.86 (0.71:1.1)a 0.17
Patients with a complication 14 (58%) 16 (67%) 0.70 (0.22–2.26)b 0.55
Number of complications per patient 1.8 (1.8) 2.2 (2.1) 0.85 (0.45:1.59)a 0.60
Clavien Dindo Grade of most severe complication 0.79 (0.27–1.96)c 0.71
Grade I 3 (13%) 3 (13%)
Grade II 10 (42%) 11 (46%)
Grade III 1 (4%) 1 (4%) Not estimableb
Grade IV 0 0
Grade V 0 1 (4%)
Wound infection 3 (13%) 5 (21%) 0.54 (0.11:2.58) 0.44
 Superficial surgical site infection 3 (13%) 4 (17%) 0.71 (0.14:3.60) 0.68
 Deep surgical site infection 0 1 (4%) Not estimable >0.99
Delayed gastric emptying 2 (8%) 2 (8%) 1 (0.13:7.75) >0.99
Bile leak 1 (4%) 2 (8%) 0.48 (0.04:5.66) 0.56
Cardiorespiratory complications 9 (37.5%) 13 (54%) 0.51 (0.16:1.61) 0.25
 Acute respiratory distress syndrome 1 (4%) 1 (4%) 1 (0.06:16.97) >0.99
 Pneumonia 1 (4%) 2 (8%) 0.48 (0.04:5.66) 0.56
 Pulmonary atelectasis 4 (17%) 3 (13%) 1.40 (0.28:7.06) 0.68
 Pulmonary congestion 0 2 (8%) 0.40 (0:5.29) 0.49
 Cardiogenic pulmonary oedema 1 (4%) 1 (4%) 1 (0.06:16.97) >0.99
 Arrhythmia 2 (8%) 4 (17%) 0.45 (0.07:2.76) 0.39
Acute pancreatitis 1 (4%) 1 (4%) 1 (0.06:16.97) >0.99
Acute kidney injury 4 (17%) 4 (17%) 1 (0.22:4.56) >0.99
Delirium 1 (4%) 3 (13%) 0.30 (0.03:3.16) 0.32
Liver failure 0 1 (4%) Not estimable >0.99
Nausea and vomiting 2 (8%) 1 (4%) 2.09 (0.18:24.73) 0.56
Electrolyte disturbances 11 (27%) 8 (62%) 1.69 (0.53:5.44) 0.377
 Hypokalemia 7 (29%) 3 (13%) 2.88 (0.65:12.87) 0.165
 Hypomagnesemia 2 (8%) 2 (8%) 1 (0.13:7.75) >0.99
 Hypophosphatemia 2 (8%) 3 (13%) 0.64 (0.10:4.20) 0.64
Endocrine abnormalities 3 (13%) 1 (4%) 3.29 (0.32:34.08) 0.32
Drug reaction 1 (4%) 0 Not estimable >0.99
Refractory analgesia 0 1 (4%) Not estimable >0.99
Otherc 2 (8%) 3 (13%) 0.64 (0.10:4.20) 0.64
Required blood transfusion 4 (17%) 3 (13%) 1.4 (0.28:7.06) 0.68
Return to theatre 1 (4%) 2 (8%) 0.48 (0.04:5.66) 0.56
Unplanned intensive care unit admission 0 1 (4%) Not estimable >0.99

dAverage difference with robust 95%CI.

a

Incidence rate ratio.

b

Odds ratio.

c

Generalized odds ratio.