Comparison 5. Sensitivity analysis (Trials at low risk of bias and trials at uncertain and high risk of bias).

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Number of participants experiencing shunt infection after administration of antibiotics	11	1109	Risk Ratio (IV, Random, 95% CI)	0.55 [0.36, 0.84]
1.1 Trials at low risk of bias	4	381	Risk Ratio (IV, Random, 95% CI)	0.48 [0.25, 0.94]
1.2 Trials at uncertain and high risk of bias	7	728	Risk Ratio (IV, Random, 95% CI)	0.58 [0.32, 1.05]