Research Article

Comparison of Survival between Single-Access and Conventional Laparoscopic Surgery in Rectal Cancer

Table 1

Demographic data.

SALS (n = 41)CLS (n = 43)
Age (years) (mean ± SD.)63.97 ± 13.0561.74 ± 12.030.417
Sex (M : F)19 : 2220 : 230.939
BMI (kg/m2) (mean ± SD.)22.20 ± 4.0023.14 ± 2.890.222

ASA classification (%)
I7 (18.4)9 (20.9)0.331
II28 (68.3)31 (72.1)
III6 (14.6)3 (7.0)

Location (%)
Anal canal18 (43.9)12 (27.9)0.052
Lower rectum12 (29.3)9 (20.9)
Mid rectum9 (22.0)20 (46.5)
Upper rectum2 (4.9)2 (4.7)

Imaging T stage (%)
II10 (24.4)31 (75.6)0.407
III14 (32.6)29 (67.4)

Imaging N stage (%)
06 (14.6)9 (20.9)0.621
I8 (19.5)10 (23.3)
II27 (65.9)24 (55.8)

Clinical stage (%)
I0 (0.0)1 (2.3)0.168
II6 (14.6)10 (23.3)
III35 (85.4)32 (74.4)

Operation (%)
Abdominoperineal resection27 (65.9)18 (41.9)0.058
Low anterior resection12 (29.3)23 (53.5)
Anterior resection2 (4.9)1 (2.3)
Intersphincteric resection0 (0.0)1 (2.3)

SD: standard deviation; ASA classification: Anesthesia Society of America Physical Classification.