Case Control Study
Copyright ©The Author(s) 2017.
World J Gastrointest Surg. Jun 27, 2017; 9(6): 149-152
Published online Jun 27, 2017. doi: 10.4240/wjgs.v9.i6.149
Table 1 General data and demographics n (%)
n = 532
Age (yr)48.9 ± 17.3
Gender (female)386 (72.56)
LOS (d) (median)1.5 (1-7)
Time of Surgery (min) (median)50 (14-178)
Drain134 (25.2)
Laboratory analysis340 (63.9)
BMI (kg/m2)28.6 ± 5.6
> 25.1302 (71.73)
> 30.1138 (32.8)
> 35.152 (12.35)
Table 2 Detailed rate and type of complications n (%)
n = 532
Overall complication rate21 (3.9)
Biliary damage5 (0.9)
Hemorrhage10 (1.9)
Post-operative abscess5 (0.9)
Urinary tract infection1 (0.2)
Table 3 Comparison of patients with and without laboratory test post operatively n (%)
Laboratory (n = 340)No laboratory (n = 192)P value
Age (yr)50.4 ± 17.746.1 ± 16.40.006
Gender (female)239 (70.3)147 (76.6)0.12
LOS (d)1.9 ± 0.991.3 ± 0.56< 0.001
Length of surgery55 (15-178)43 (14-100)< 0.001
BMI (kg/m2)28.9 ± 5.828.1 ± 5.20.17
Complications18 (3.4)4 (0.8)0.07
Conversion5 (0.3)00.16
Drain109 (20.5)25 (4.7)< 0.001
Table 4 Subgroup univariate and multivariate analysis comparing patients who experienced complications with those who did not n (%)
Complications (n = 22)No complications (n = 510)P value (univariate)P value (multivariate)
Age (yr)53 ± 1748.7 ± 17.40.26
Gender (female)15 (68.2)371 (72.8)0.63
LOS (d)2.45 ± 1.21.7 ± 0.9< 0.001
Length of surgery57.3 ± 20.753.4 ± 23.30.440.08
BMI (kg/m2)31.5 ± 8.128.5 ± 5.50.040.05
Postop labs18 (81.8)322 (63.1)0.070.06
Conversion2 (9.0)3 (0.6)0.01
Drain11 (50.0)123 (24.1)0.0060.02