Study	Reason for exclusion
Eymann 2008	A retrospective case‐control study. This was not clearly stated in the abstract
ISRCTN29451493	They used external ventricular drains
Kumar 2016	A prospective, observational study
Moussa 2017	Antibiotic prophylaxis were used in the control group: single dose of cefotaxime 50mg/kg body weight given iv. within 60min prior to skin incision repeated once postoperatively
NCT00280904	Observational study
NCT00286104	They used external ventricular drains
NCT01936272	Ventricularperitoneal shunt placement versus endoscopic third ventriculostomy/choroid plexus cauterization
NCT02600793	It is non‐randomised and they used external ventricular drains
Nejat 2008	Trimethoprim‐sulfamethoxazole 5mg/kg was used in the control group
Odio 1984	Unclear what shunt type was used
Tacconelli 2008	This study did not report on shunt infections in internal shunts
Theophilus 2011	The control group consisted of regular care with a single prophylactic dose of iv cefuroxime 25mg/kg body weight
Walters 1992	Not described what shunt type was used
Young 1987	Not described what shunts are used
Zentner 1995	This study did not report on shunt infections in internal shunts