Table 2.
Sensitivity analyses on delirium incidence.
| References | Patients remaining (M/C) | Events remaining (M/C) | RR (95% CI) | I2 (%) | p |
|---|---|---|---|---|---|
| Sultan (10) | 496/510 | 89/126 | 0.58 (0.35–0.97) | 64 | 0.04 |
| Nickkholgh et al. (16) | 532/642 | 94/182 | 0.51 (0.30–0.87) | 73 | 0.01 |
| Hatta et al. (22) | 517/626 | 93/172 | 0.56 (0.34–0.93) | 68 | 0.003 |
| de Jonghe et al. (21) | 364/468 | 39/134 | 0.43 (0.27–0.69) | 41 | 0.0005 |
| Al-Aama et al. (20) | 494/608 | 92/173 | 0.56 (0.33–0.94) | 69 | 0.03 |
| Dianatkhah et al. (13) | 484/589 | 90/174 | 0.51 (0.29–0.89) | 73 | 0.02 |
| Vijayakumar et al. (12) | 524/630 | 81/158 | 0.47 (0.23–0.93) | 73 | 0.03 |
| Nishikimi et al. (15) | 487/599 | 83/162 | 0.50 (0.26–0.94) | 76 | 0.03 |
| Abbasi et al. (14) | 483/590 | 91/182 | 0.47 (0.28–0.79) | 72 | 0.005 |
CI, confidence interval; C, control group; M, melatonergics group; No., number; RR, risk ratio.