2D vs 3D laparoscopic right colectomy: A propensity score-matching comparison of personal experience with systematic review and meta-analysis

Table 4 Main features of complete mesocolic excision patients

	Before propensity score matching			After propensity score matching
	2D, n = 41	3D, n = 30	P value	2D, n = 24	3D, n = 5	P value
Age (yr), mean ± SD	70.1 ± 12.6	74.7 ± 11.4	0.037	70.8 ± 13.1	74.2 ± 11.2	0.352
Sex, n (%)			0.258			0.199
M	26 (63.4)	15 (50.0)		10 (41.7)	15 (60.0)
F	15 (36.6)	15 (50.0)		14 (58.3)	10 (40.0)
BMI, mean ± SD	24.6 ± 3.0	24.4 ± 2.8	0.620	23.9 ± 2.0	24.7 ± 2.9	0.610
CACI, median (range)	4 (0-16)	5 (0-12)	-	4.5 (0-9)	4 (0-12)	-
CACI, mean ± SD	3.95 ± 2.78	5.23 ± 3.34	0.250	4.04 ± 2.89	5.08 ± 2.94	0.420
Tumor size (cm), mean ± SD	4.26 ± 1.71	4.52 ± 1.88	0.478	4.33 ± 1.52	4.42 ± 1.77	0.840
Operative time (min), mean ± SD	208.0 ± 40.0	172.6 ± 37.1	< 0.001	193.7 ± 37.1	175.0 ± 38.5	0.063
Anastomotic time (min), mean ± SD	20.2 ± 2.6	16.6 ± 1.8	< 0.001	19.9 ± 3.0	16.5 ± 1.8	< 0.001
Associated procedures, n (%)	17 (41.5)	17 (56.7)	0.205	10 (41.7)	14 (56.0)	0.316
Complexity of associated procedures, mean ± SD	3.80 ± 0.69	4.08 ± 0.85	0.420	3.75 ± 0.84	4.10 ± 0.92	0.355
Time to first flatus (d), mean ± SD	3.53 ± 1.58	3.23 ± 1.04	0.492	3.45 ± 1.06	3.36 ± 1.07	0.681
Hospital stay (d, median)	7 (3-60)	7 (6-15)	-	7 (3-24)	7 (6-15)	-
Hospital Stay (d), mean ± SD	8.90 ± 8.89	8.13 ± 2.44	0.231	8.16 ± 4.29	8.44 ± 2.55	0.333
Postoperative complications, n (%)			0.646			0.376
Yes	9 (26.7)	8 (22.0)		5 (20.8)	8 (32.0)
No	32 (77.5)	22 (76.9)		19 (79.2)	17 (68.0)
Clavien-Dindo Classification, n (%)			0.893			0.835
I-II	7 (80.0)	6 (75.0)		4 (80.0)	6 (75.0)
III-IV	2 (25.0)	2 (22.2)		1 (20.0)	2 (25.0)
30-d mortality, n (%)	0	0	-	0	0	-
Retrieved nodes, mean ± SD	23.7 ± 6.3	22.7 ± 7.1	0.571	22.0 ± 3.4	23.9 ± 6.4	0.415

BMI: Body mass index; CACI: Charlson Age-Comorbidities Index.