Retrospective Study
Copyright ©The Author(s) 2016.
World J Gastrointest Surg. Jun 27, 2016; 8(6): 452-460
Published online Jun 27, 2016. doi: 10.4240/wjgs.v8.i6.452
Table 1 Demographic characteristics of study cohort
VariablesLap (%) n = 200Converted (%) n = 25Open (%) n = 408P value
GenderMale128 (64)15 (60)243 (60)0.570
Female72 (36)10 (40)165 (40)
Median age (yr)596366< 0.001
Ethnic groupChinese172 (86)22 (88)352 (86.3)0.368
Malay9 (4.5)019 (4.7)
Indian4 (2)2 (8)18 (4.4)
Others15 (7.5)1 (4)19 (4.7)
ASA175 (37.5)4 (16)84 (20.6)0.002
2105 (52.5)20 (80)267 (65.4)
320 (10)1 (4)55 (13.5)
4002 (0.4)
Location of tumorLower rectum68 (34)8 (32)131 (32.1)0.381
Middle rectum90 (45)10 (40)212 (52)
Upper rectum42 (21)7 (28)65 (15.9)
Type of surgeryHAR30 (15)4 (16)24 (5.9)0.067
LAR (w/stoma)27 (13.5)4 (16)82 (20.1)
LAR (w/o stoma)32 (16)5 (20)76 (18.6)
ULAR98 (49)12 (48)193 (47.3)
APR13 (6.5)033 (8.1)
Neo-adjuvant therapy statusChemo-therapy5 (2.5)014 (3.4)< 0.001
Radio-therapy3 (1.5)012 (2.9)< 0.001
Adjuvant therapy statusChemo-therapy65 (32.5)15 (60)134 (32.8)0.071
Radio-therapy28 (14)7 (28)82 (20.1)0.271