Table 1.

Patient characteristics.

	Control group	POD group	P-value
Age (years)	70.90 ± 3.48	71.35 ± 4.08	0.710
Sex (M/F)	12/8	11/9	0.749
BMI (kg/m2)	21.25 ± 2.86	21.41 ± 2.73	0.858
ASA physical status			0.519
I	0 (0%)	0 (0%)
II	11 (55%)	13 (65%)
III	9 (45%)	7 (35%)
Duration of surgery, min	171.5 ± 56.85	188.6 ± 73.39	0.414

Continuous variables are presented as the mean ± SD; categorical variables are presented as numbers. ASA, American Society of Anesthesiologists; BMI, body mass index; F, female; M, male; SD, standard deviation.