International Perinatal Outcomes in the Pandemic (iPOP) study, multi-country

Data from the International Perinatal Outcomes in the Pandemic (iPOP) study [https://ipopstudy.com](https://ipopstudy.com). The iPOP study is investigating the impact of pandemic lockdowns on preterm birth and stillbirth rates. Aggregate population-based birth data provided by collaborators will be analysed using quasi-experimental methods including Interrupted Time Series Analysis (ITSA) and Difference in Differences [DID] design. This dataset definition describes the data provided by collaborators and the study outputs. The [Study protocol](https://wellcomeopenresearch.org/articles/6-21) provides more details on the scope and design of the study. The data collection templates used are provided in the Resources section below. In order to have an access request for this dataset considered, you must be part of the iPOP community. See iPOP website for instructions as to how to join.