Table 1 Characteristics of participants
|  | Non-POD (n = 92) | POD (n = 92) | P |
|---|---|---|---|
Male [n (%)] | 54(58.7) | 54(58.7) | 0.559 |
History of hypertension, n (%) | 36(39.1) | 42(45.7) | 0.456 |
History of diabetes, n (%) | 18(19.6) | 14(15.2) | 0.560 |
Smoking history, n (%) | 35(38.0) | 32(34.8) | 0.759 |
Age(year) | 65(56–71) | 66.50(55.50–73) | 0.817 |
Years of education(year) | 9(9–12) | 9(6–12) | 0.353 |
Preoperative MMSE score | 28(27–29) | 28(25–29) | 0.196 |
Duration of surgery(min) Duration of anesthesia(min) Intraoperative blood loss(ml) Intraoperative fluid input(ml) | 120(110–130) 145(140–160) 120(110–130) 800(800–900) | 120(110–130) 140(130–150) 120(110–130) 800(800–900) | 0.174 0.413 0.748 0.673 |
Postoperative NRS score | 2.5(2–3) | 3(2–3) | 0.143 |