Transumbilical three-port vs conventional laparoscopic appendectomy: A single-center retrospective comparative study

Table 1 Baseline characteristics of patients, n (%)/median (interquartile range)

Variables	All patients (n = 77)	Conventional group (n = 26)	Cosmetic group (n = 51)	H	P value
Age	46 (30, 57)	36 (15.25, 53.75)	49 (35.5, 57)	4.69	0.03
Gender				1.857	0.173
Male	45 (58.4)	18 (69.2)	27 (52.9)
Female	32 (41.6)	8 (31.8)	24 (47.1)
BMI (kg/m2)	24.4 (22.4, 25.8)	22.95 (20.25, 25.7)	24.7 (23.2, 25.85)	3.89	0.0487
Preoperative WBC (10-9/L)	11.9 (10.6, 13.5)	12.65 (11.35, 13.8)	11.6 (10.3, 13.15)	3.55	0.059
Preoperative CRP (mg/L)	21.5 (15.1, 39.8)	30.3 (18.65, 44.05)	19.7 (14.05, 32.65)	4.71	0.03
Comorbidities				0.31	0.58
None	47 (61.04)	17 (65.38)	30 (58.82)
COPD	5 (6.49)	2 (7.69)	3 (5.88)
CHD	2 (2.6)	0 (0)	2 (3.92)
DM	12 (15.58)	4 (15.38)	8 (15.69)
Hypertension	26 (33.77)	8 (30.77)	18 (35.29)
Heart failure	1 (1.3)	1 (3.85)	0 (0)
Appendicitis type				0.76	0.382
Acute	42 (54.5)	16 (61.5)	26 (51.0)
Chronic	35 (45.5)	10 (38.5)	25 (49.0)

BMI: Body mass index; WBC: White blood cell; CRP: C-reactive protein; COPD: Chronic obstructive pulmonary disease; CHD: Coronary heart disease; DM: Diabetes mellitus.