TABLE 2.

Demographic characteristics between POD and non-POD patients.

Characteristics	POD (n = 4)	Non-POD (n = 4)	P*
Age	88.25 (4.76)	83.75 (2.77)	0.207
Gender, male, n (%)	1 (25)	1 (25)	1.000
BMI	24.45 (2.50)	22.09 (3.19)	0.353
Surgery duration (min)	141.3 (39.75)	115 (36.40)	0.431
CHD, n (%)	1 (25)	0 (0)	0.285
CVD, n (%)	3 (75)	1 (25)	0.157
Hypertension, n (%)	1 (25)	2 (50)	0.465
DM, n (%)	1 (25)	1 (25)	1.000

*P values are for comparison between POD and non-POD group. The P value was calculated with the use of the Mann-Whitney U for compare continuous variables. The P value was calculated with the use of Fisher Chi-squared test for categorical variables. Abbreviations: BMI: Body Mass Index, CHD: Coronary Heart Disease, CVD: Cardiovascular Disease, DM: Diabetes Mellitus.