Driving Pressure During General Anesthesia for Open Abdominal Surgery (DESIGNATION): study protocol of a randomized clinical trial

Table 1 Assess Respiratory Risk in Surgical Patients in Catalonia scores

Risk for PPC of variables selected for the logistic regression model
	Multivariate analysis	Β coefficients	Risk score
	OR (95% CI) n = 1625	Β coefficients	Risk score
Age (years)
≤ 50	1
51–80	1.4 (0.6–3.3)	0.331	3
> 80	5.1 (1.9–13.3)	1.619	16
Preoperative SpO₂ (%)
≥ 96	1
91–95	2.2 (1.2–4.2)	0.802	8
≤ 90	10.7 (4.1–28.1)	2.375	24
Respiratory infection in last month	5.5 (2.6–11.5)	1.698	17
Preoperative anemia (≤ 10 g/dL)	3.0 (1.4–6.5)	1.105	11
Surgical incision
Peripheral	1
Upper abdominal	4.4 (2.3–8.5)	1.480	15
Intrathoracic	11.4 (4.9–26.0)	2.431	24
Duration of surgery (h)
≤ 2	1
> 2–3	4.9 (2.4–10.1)	1.593	16
> 3	9.7 (4.7–19.9)	2.268	23
Emergency procedure	2.2 (1.04–4.5)	0.768	8

SpO₂ oxyhemoglobin saturation by pulse oximetry breathing air in supine position
High or intermediate risk for postoperative pulmonary complications following abdominal surgery: ARISCAT risk score ≥ 26

ISSN: 1745-6215