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Table 1 Assess Respiratory Risk in Surgical Patients in Catalonia scores

From: Protective intraoperative ventilation with higher versus lower levels of positive end-expiratory pressure in obese patients (PROBESE): study protocol for a randomized controlled trial

 

Multivariate analysis, OR (95% CI), n = 1624

β Coefficient

Risk scorea

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 the 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

  1. SpO 2 Peripheral oxyhemoglobin saturation measured by pulse oximetry breathing air in supine position
  2. Independent predictors of risk for development of postoperative pulmonary complications as described by Canet et al. [13] (ARISCAT score). A risk score ≥26 predicts an intermediate to high risk for postoperative pulmonary complications)
  3. aThe simplified risk score is the sum of each logistic regression coefficient multiplied by 10, after rounding off its value