| 1 Mortality within 30 days |
12 |
1207 |
Risk Ratio (M‐H, Fixed, 95% CI) |
0.80 [0.42, 1.53] |
| 2 Pneumonia |
7 |
778 |
Risk Ratio (M‐H, Fixed, 95% CI) |
0.45 [0.25, 0.82] |
| 3 Need for postoperative non‐invasive ventilation |
3 |
506 |
Risk Ratio (M‐H, Fixed, 95% CI) |
0.31 [0.15, 0.64] |
| 4 Need for postoperative invasive ventilation |
11 |
957 |
Risk Ratio (M‐H, Fixed, 95% CI) |
0.33 [0.14, 0.77] |
| 5 Intensive care unit length of stay (days) |
5 |
898 |
Std. Mean Difference (Random, 95% CI) |
‐0.06 [‐0.22, 0.10] |
| 6 Hospital length of stay divided in subgroups according to positive end‐expiratory pressure (PEEP) use (days) |
14 |
1298 |
Std. Mean Difference (Random, 95% CI) |
‐0.15 [‐0.29, ‐0.00] |
| 6.1 PEEP used for both groups |
8 |
537 |
Std. Mean Difference (Random, 95% CI) |
‐0.08 [‐0.33, 0.18] |
| 6.2 PEEP used for low tidal volume group only |
7 |
761 |
Std. Mean Difference (Random, 95% CI) |
‐0.23 [‐0.38, ‐0.08] |
| 7 Hospital length of stay divided in subgroups according to recruitment manoeuvres or not (days) |
14 |
1298 |
Std. Mean Difference (Random, 95% CI) |
‐0.15 [‐0.29, ‐0.00] |
| 7.1 Recruitment manoeuvres in low tidal volume group only |
4 |
638 |
Std. Mean Difference (Random, 95% CI) |
‐0.25 [‐0.41, ‐0.09] |
| 7.2 Recruitment manoeuvres in high tidal volume group only |
1 |
40 |
Std. Mean Difference (Random, 95% CI) |
0.0 [‐0.62, 0.62] |
| 7.3 Recruitment manoeuvres in both groups |
3 |
254 |
Std. Mean Difference (Random, 95% CI) |
0.16 [‐0.09, 0.40] |
| 7.4 No recruitment manoeuvres mentioned |
6 |
366 |
Std. Mean Difference (Random, 95% CI) |
‐0.26 [‐0.50, ‐0.02] |
| 8 Pneumothorax |
5 |
708 |
Risk Ratio (M‐H, Fixed, 95% CI) |
1.77 [0.52, 5.99] |
