Table 1

Univariate analysis for baseline characteristics

Pre-ERAS group
(2009–14)
(n=29)
Post-ERAS group
(2015–20)
(n=52)
P value
Age (years) (median (IQR))42 (35–53)41 (35–49)0.47
Body mass index (kg/m2) (median (IQR))26.1 (24.6–29.7)27.1 (23.5–33.5)0.44
American Society of Anesthesiologists classification (n (%))0.76
 II1 (3.4)7 (13.5)
 III9 (31.0)45 (86.5)
 Missing19 (65.5)0 (0)
Preoperative stage (n (%))0.24
 IA12 (6.9)3 (5.8)
 IA23 (10.3)10 (19.2)
 IB123 (79.3)34 (65.4)
 IB20 (0.0)4 (7.7)
 IIA11 (3.4)0 (0)
 Missing0 (0)1 (1.9)
Preoperative hemoglobin (g/dL) (median (IQR))13.6 (11.5–14.5)13.1 (12.1–13.8)0.46
Duration of surgery (minutes) (median (IQR))244 (195–302)272 (243–306)0.07
Blood loss (mL) (median (IQR))300 (200–550)325 (150–500)0.84
Pathology grade (n (%))0.15
 I2 (6.9)2 (3.8)
 II8 (27.6)20 (38.5)
 III8 (27.6)22 (42.3)
 Unknown11 (37.9)8 (15.4)
Histology (n (%))0.19
 Squamous6 (20.7)21 (40.4)
 Adenocarcinoma9 (31.0)11 (21.1)
 Adenosquamous2 (6.9)4 (7.7)
 Neuroendocrine1 (3.5)0 (0)
 Undifferentiated1 (3.5)0 (0)
 No residual tumor8 (27.6)9 (17.3)
 Mixed0 (0)2 (3.8)
 Other2 (6.9)5 (9.6)