Conversion of laparoscopic colorectal resection for cancer: What is the impact on short-term outcomes and survival?

Table 1 Baseline characteristics of individual studies

Ref.	Study design	Colon and/or rectal	No. patients	Conversion (%)			Men (%)		Age (yr)		BMI (kg/m2)
				Overall	Colon resection	Rectal resection	LAP	CONV	LAP	CONV	LAP	CONV
Allaix et al[13]	Retrospective	Both	1114	122 (10.9)	77 (10.7)	45 (11.4)	530 (53.4)	69 (56.6)	67.01	68.0	23.0	24.0
Agha et al[14]	Retrospective	Rectal	300	26 (8.6)	NA	26 (8.6)	166 (60.5)1	21 (80.7)	64.7	64.5	26.21	29.0
Biondi et al[12]	Prospective	Both	207	33 (15.9)	14 (42.4)	19 (57.6)	102 (58.6)	23 (69.7)	65.5	66.8	NR	NR
Bouvet et al[15]	Prospective	Both	91	38 (41.1)	NR	NR	30 (56,6)	25 (65.8)	65.0	67.0	NR	NR
Chan et al[16]	Prospective	Both	470	41 (8.7)	NR (12.3)	NR (7.2)	238 (55.5)1	30 (73.2)	69.0	69.1	NR	NR
Franko et al[21]	Prospective	Both	174	31 (17.8)	NR	NR	73 (51.0)	21 (51.2)	70.0	69.0	NR	NR
Keller et al[22]	Prospective	Rectal	141	25 (17.7)	NA	25 (17.7)	63 (54.3)	17 (68.0)	63.1	63.5	28.7	27.5
Li et al[23]	Retrospective	Colon	217	33 (15.2)	33 (15.2)	NA	94 (51.1)	20 (60.7)	62.6	62.9	25.6	24.5
Martínek et al[17]	Prospective	Both	243	17 (7.0)	10 (6.3)	7 (8.2)	146 (64.6)	13 (76.5)	64.5	62.8	26.7	28.4
Moloo et al[24]	Prospective	Both	359	46 (12.8)	NR	NR	171 (54.6)	25 (54.3)	65.0	65.0	NR	NR
Ptok et al[25]	Prospective	Colon	346	56 (16.2)	56 (16.2)	NA	NR	NR	66.5	68.9	NR	NR
Rickert et al[26]	Prospective	Rectal	162	38 (23.5)	NA	38 (23.5)	69 (55.7)	27 (71.0)	63.01	69.0	25.1	25.8
Rottoli et al[20]	Prospective	Rectal	173	26 (15.0)	NA	26 (15.0)	NR	NR	63.2	64.3	24.91	27.3
Rottoli et al[27]	Prospective2	Both	93	31 (NA)	NR	NR	37 (59.7)	24 (77.4)	72.0	72.0	26.81	29.6
Scheidbach et al[18]	Retrospective	Both	1409	80 (5.7)	41 (8.2)	39 (6.4)	658 (49.5)	46 (57.5)	68.9	69.7	25.21	26.4
White et al[19]	Prospective	Both	175	25 (14.3)	NR	NR	70 (46.7)	11 (44.0)	69.7	74.4	27.2	26.9
Yamamoto et al[28]	Prospective	Rectal	1073	78 (7.3)	NA	78 (7.3)	625 (62.8)	48 (61.5)	62.9	63.8	22.71	24.6
Yerokun et al[29]	Retrospective	Colon	46472	6144 (13.2)	6144 (13.2)	NA	19738 (48.9)1	3308 (53.8)	70.01	69.0	NR	NR

¹P value of difference between overall LAP and CONV is < 0.05;

²Case-control study. BMI: Body mass index; NR: Not reported; NA: Not applicable; LAP: Laparoscopic group; CONV: Converted group.