Table 3.

Sensitivity analysis of postoperative delirium in the postoperative subgroup. Figures are Mantel-Hanzel point estimates

comparison	Point estimate(95% CI)	P	I2
Primary analysis	OR 5.55(0.91, 33.88)	0.06	84%
Sensitivity analysis
Exclude the study “Moncada 2005” [35]	OR 13.56(2.24, 81.97)	0.005	66%
Alter effect measure: Relative risk	RR 2.78(1.27, 6.05)	0.01	84%
Alter effect measure: Relative difference	RD 0.39(0.04, 0.74)	0.03	92%