Table 2

Sensitivity analysis

Statistics with study removed
First author (year)PointsLower limitUpper limitZ-valuep Value
Anastomotic fistula/leakage
 Boelens (2014)0.820.571.17−1.100.271
 Liu (2013)0.760.531.09−1.470.141
 Park (2012)0.750.531.08−1.560.118
 Liu (2011)0.830.581.20−0.990.322
 Klek (2008)_standard0.760.531.10−1.470.141
 Klek (2008)_immunomodulating0.720.501.05−1.710.088
 Wu (2007)0.770.531.11−1.420.155
 Bozzetti (2001)0.780.541.14−1.260.207
 Braga (2001)0.760.521.11−1.410.157
 Pacelli (2001)0.760.511.13−1.370.170
 Braga (1998)0.760.531.10−1.440.150
Intra-abdominal infection/abscess
 Boelens (2014)0.760.481.21−1.150.252
 Liu (2013)0.750.501.15−1.320.186
 Liu (2011)0.790.521.19−1.130.257
 Klek (2008)_standard0.760.501.15−1.310.190
 Klek (2008)_immunomodulating0.770.511.17−1.230.219
 Wu (2007)0.840.541.30−0.780.434
 Bozzetti (2001)0.790.521.19−1.120.261
 Braga (2001)0.760.481.21−1.160.246
 Pacelli (2001)0.780.511.22−1.080.279
 Braga (1998)0.800.531.21−1.050.293
 Gianotti (1997)0.740.471.16−1.300.192
Mortality
 Klek (2008)_standard1.000.511.970.010.990
 Klek (2008)_immunomodulating1.000.511.960.000.998
 Wu (2007)1.000.492.040.000.999
 Alivizatos (2005)1.000.511.960.010.992
 Bozzetti (2001)1.190.582.420.480.632
 Braga (2001)1.060.512.180.160.876
 Pacelli (2001)0.770.371.61−0.700.485
 Gianotti (1997)1.000.502.000.000.998
Postoperative hospital stay
 Li (2015)−1.57−2.21−0.92−4.75<0.001
 Boelens (2014)−1.57−2.21−0.93−4.82<0.001
 Park (2012)−1.74−2.42−1.07−5.05<0.001
 Kim (2011)−1.81−2.52−1.10−4.99<0.001
 Liu (2011)−1.79−2.55−1.03−4.62<0.001
 Dong (2010)−1.87−2.54−1.19−5.39<0.001
 Klek (2008)_standard−1.82−2.51−1.13−5.16<0.001
 Klek (2008)_immunomodulating−1.89−2.55−1.24−5.67<0.001
 Wu (2007)−1.79−2.53−1.05−4.74<0.001
 Ates (2004)−1.72−2.41−1.03−4.91<0.001
 Bozzetti (2001)−1.76−2.49−1.04−4.78<0.001
 Braga (2001)−1.79−2.49−1.10−5.08<0.001
 Pacelli (2001)−1.82−2.53−1.11−5.01<0.001
 Braga (1998)−1.63−2.30−0.95−4.73<0.001
 Gianotti (1997)−1.72−2.41−1.03−4.88<0.001
 Braga (1996)−1.70−2.38−1.03−4.95<0.001
 Braga (1995)−1.62−2.28−0.97−4.86<0.001
Time to flatus
 Li (2015)−1.21−1.75−0.68−4.43<0.001
 Boelens (2014)−1.38−1.86−0.91−5.70<0.001
 Wu (2007)−1.41−1.83−0.99−6.55<0.001
 Braga (2001)−1.07−1.50−0.64−4.89<0.001
 Gianotti (1997)−1.29−1.82−0.77−4.81<0.001
Change in albumin
 Li (2015)−1.43−2.45−0.41−2.740.006
 Liu (2013)−1.51−2.43−0.58−3.190.001
 Park (2012)−1.37−2.30−0.44−2.900.004
 Kim (2011)−1.35−2.26−0.44−2.910.004
 Dong (2010)−1.38−2.30−0.46−2.940.003
 Klek (2008)_standard−1.03−1.82−0.23−2.530.011
 Klek (2008)_immunomodulating−1.50−2.47−0.53−3.030.002
 Braga (2001)−1.50−2.52−0.49−2.900.004
 Braga (1996)−0.97−1.57−0.38−3.220.001
 Braga (1995)−1.30−2.23−0.38−2.750.006