This page contains the findings of systematic reviews undertaken by review groups linked to the EPPI-Centre. The research evidence is largely relevant to screening for cystic fibrosis (CF), and little refers to screening for phenylketonuria (PKU), congenital hypothyroidism (CHT) or sickle cell disorders (SCD). This topic is included in the EPPI-Centre knowledge library. The Knowledge Pages facility enables users to search for the key messages within specific subject areas to which EPPI-Centre reviews have contributed.