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 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