Figure 2

Forest plots of the pooled analysis of the investigated outcome variables. VAS indicates vantriculoatrial shunt, VPS ventriculoperitoneal shunt. (++) indicates critical risk of bias, whereas (+) serious risk of bias.

Forest plots of the pooled analysis of the investigated outcome variables. VAS indicates vantriculoatrial shunt, VPS ventriculoperitoneal shunt. (++) indicates critical risk of bias, whereas (+) serious risk of bias.