Table 2.
Meta-analysis of secondary outcomes
| Comparison | Trials (n) | Secondary outcomes | Summary estimate with 95% CI | I2 (%) | Cochran’s Q P value |
|---|---|---|---|---|---|
| PAV versus PSV for weaning from mechanical ventilation in adults | 6 (484) | Reintubation | RR, 0.49 [0.28; 0.87]* | 0 | 0.81 |
| 5 (461) | Mortality | RR, 0.66 [0.42; 1.06] | 0 | 0.56 | |
| 5 (276) | ICU length of stay (days) | MD, − 1.58 [− 2.68; − 0.47]* | 0 | 0.76 | |
| 3 (122) | Duration of weaning (hours) | MD, − 0.01 [− 1.30; 1.28] | 0 | 0.57 | |
| 3 (133) | Duration of ventilation (hours) | MD, − 40.26 [− 66.67; − 13.84]* | 0 | 0.56 |
1. Values of RR less than 1 indicates a reduction in risk for the events with the PAV group
2. Summary estimate presents the result of fixed-effect meta-analysis
*Statistically significant