Forest plot of congenital hydrocephalus birth prevalence rate per 10,000 births by (a) elective termination of pregnancy for fetal anomalies (ETOPFA), (b) region and (c) registry type, International Clearinghouse for Birth Defects Surveillance and Research (ICBDSR), 2000–2014. ES (95% CI), case fatality rate per 100 liveborn cases. ETOPFA NO, elective termination of pregnancy for fetal anomaly policy not allowed in the country where the registry is located. ETOPFA YES, elective termination of pregnancy for fetal anomaly policy allowed in the country where the registry is located