Table 2.

Comparison of Mini-Cog score between the DEX group and saline group.

	DEX group (n = 54)	S group (n = 55)	P
24 hours before the operation	26.84 ± 0.87	27.98 ± 0.73	0.102
6 hours after the operation	23.90 ± 1.03	21.42 ± 2.93	0.002
24 hours after the operation	26.31 ± 1.32	25.08 ± 1.09	0.019
72 hours after the operation	27.45 ± 0.82	27.69 ± 0.93	0.338
1 week after the operation	28.01 ± 1.53	28.34 ± 0.87	0.056

Data are described as mean ± SD.