Table 4.

Comparison of cases begun open versus converted cases

Factor	Open	Converted	p value
No. of patients	11	9
Age, yr	62 (33–76)	72 (47–78)	0.06
Sex, male/female	55%/45%	78%/22%	0.37
BMI	26.2 (18.5–33.3)	23.5 (16.4–31.6)	0.53
ASA score	2 (2–3)	3 (2–3)	0.36
Operative time, min.	518 (303–665)	613 (470–892)	0.07
Estimated blood loss, mL	700 (300–6500)	1650 (800–5050)	0.020
Tumour size, cm	3.1 (1.8–4.5)	3.7 (2.8–6.5)	0.27
R0 resection margin, no. (%)	3/8 (38%)	4/7 (57%)	0.62
Lymph node harvest	20 (7–30)	19 (15–45)	0.56
Length of stay, d	11 (6–23)	15.5 (7–26)	0.31
Clavien I/II, no. (%)	5 (45%)	4 (44%)	> 0.99
Clavien III/IV, no. (%)	4 (36%)	4 (44%)	> 0.99
90-day mortality, no. (%)	1 (10%)	3 (33%)	0.30

ASA = American Society of Anesthesiologists; BMI = body mass index.