Table 2 Postoperative complications, in geographic area according the 2020 World Bank Country Classification

PPC

2.5 (204/8288)

3.2 (34/1052)

9.0 (32/357)

< 0.001

 Pneumothorax

0.1 (10/8288)

0.3 (3/1052)

0.0 (0/357)

0.304

 Respiratory failure

1.3 (108/8288)

1.7 (18/1052)

8.4 (30/357)

< 0.001

 Pneumonia

0.4 (30/8288)

1.0 (10/1052)

0.0 (0/357)

0.009

 ARDS

0.1 (5/8288)

0.4 (4/1052)

0.0 (0/357)

0.005

 Unplanned new invasive mechanical ventilation

1.2 (97/8288)

0.9 (9/1052)

0.3 (1/357)

0.207

Length of hospital stay, days

1 [0 to 4]

2 [0 to 5]

8 [1 to 21]

< 0.001

In-hospital mortality

0.6 (43/7627)

1.3 (13/1017)

0 (0/329)

0.009