Assessment of routine immunization data quality in Oyo State, Nigeria, 2016

Introduction : quality routine immunization (RI) data is essential for proper planning and effective decision making. In February 2016, RI module of DHIS 2 was implemented in Oyo State to improve RI data quality and strengthen data management. Prior to its implementation, RI data were reported via administrative methods characterized by good reporting rate but poor quality. In November 2016, we assessed the quality of RI data in the State to determine if there was improvement in RI data quality and identify remaining gaps.