Preoperative clinical and laboratory factors associated with early complications after low anterior resection: Exploratory analysis of the eosinophil/lymphocyte ratio

Table 1 Demographic, clinical, and laboratory data of the patients (n = 105), n (%)

Variables	Value
Age (years) (mean ± SD)	66 ± 12
Gender, female/male	39/66 (37.1/62.9)
Body mass index (kg/m2,mean ± SD)	24.17 ± 2.2 (20-31)
Diabetes mellitus	25 (23.8)
Smoking	22 (21)
Protective loop ileostomy	23 (21.9)
Neoadjuvant chemoradiotherapy	26 (24.8)
Operation type
Open surgery	63 (60)
Laparoscopic surgery	42 (40)
Length of hospital stay (days) (mean ± SD)	10.04 ± 4.6 (5-29)
Follow-up period (months) (mean ± SD)	46.44 ± 25 (1-85)
Overall survival	89 (84.8)
Disease-free survival (months) (mean ± SD)	42.49 ± 24 (1-85)
Preoperative erythrocyte suspension replacement	38 (36.2)
Stage classification
Stage 0	1 (0.9)
Stage 1	26 (24.8)
Stage 2	32 (30.5)
Stage 3	46 (43.8)
Differentiation
Well-differentiated	48 (45.7)
Moderately differentiated	55 (52.4)
Poorly differentiated	2 (1.9)
Mass localization level
Lower	14 (13.3)
Middle	25 (23.8)
Upper	66 (62.9)
Prognostic nutritional index score
≥ 45	19 (18.1)
< 45	86 (81.9)
Presence of early complications	29 (27.6)
Bleeding	2 (1.9)
Anastomosis leakage	10 (9.5)
Wound site infection	5 (4.8)
Eventration	4 (3.8)
Subileus	3 (2.9)
Pleurisy	3 (2.9)
Acute renal failure	2 (1.9)
Presence of late complications	14 (13.3)
Bridge ileus	1 (0.9)
Anastomosis narrowing	8 (7.6)
Recurrence	5 (4.8)
Disease course
Remission	76 (72.4)
Progression	13 (12.4)
Mortality	16 (15.2)