Comparison of immediate surgical outcomes between posterior pelvic exenteration and standard resection for primary rectal cancer: A matched case-control study

Table 2 Patient- and tumor- related variables between PPE group and non PPE group (mean ± SD)

Variables	PPE (n = 10)	Non PPE (n = 20)	P
Patient related
Age (yr)	57.4 ± 13.5	57.8 ± 13.1	0.94
BMI (kg/m2)	22.2 ± 2.9	21.4 ± 3.7	0.58
ASA status I:II:III	30:50:20	45:50:05	0.39
Hypoalbuminemia1	50	25	0.23
Preoperative CEA (ng/mL)	36.9 ± 44.7	11.5 ± 21.0	0.12
Tumor related
Stage I:II:III:IV2	0:30:60:10	20:20:60:0	0.30
Tumor size (cm)	6.0 ± 2.2	4.8 ± 2.0	0.16
Location of the tumor	9.1 ± 3.3	9.0 ± 3.0	0.93
from the anal verge (cm)

BMI: Body mass index; ASA: American society of anesthesiologists; CEA: Carcinoembryonic antigen.

¹Serum albumin less than 3.5 mg/dL;

²Patient with Krukenberg tumor.