{"metadata_information":{"producers":[{"name":"TORRES, Catalina","affiliation":"Universidad de la Rep\u00fablica, Uruguay"},{"name":"PISON, Gilles","affiliation":"INED"},{"name":"PONIAKINA, Svitlana","affiliation":"INED"}],"idno":"BDI_HMBD_V1_22","production_date":"2022-08-11","version":"1"},"table_description":{"title_statement":{"idno":"BDI_HMBD_V1_22","title":"Human Multiple Birth Database","alternate_title":"HMBD","abbreviated_title":"HMBD"},"authoring_entity":[{"name":"TORRES, Catalina","affiliation":"Universidad de la Rep\u00fablica, Uruguay"},{"name":"PISON, Gilles"}],"publisher":[{"name":"French Institute for Demographic Studies","uri":"https:\/\/www.ined.fr\/en\/"}],"unit_observation":[{"value":"Agregated"}],"languages":[{"name":"English"}],"keywords":[{"name":" demographic data"},{"name":" multiple births"},{"name":" open access data"},{"name":"twin births"},{"name":"twinning rate"}],"disciplines":[{"name":"Demography"},{"name":"Social sciences"}],"license":[{"name":"CC BY 4.0","uri":"Creative Commons Attribution 4.0 International"}],"date_created":"2020","date_published":"2022","date_modified":"2025","version":"1","description":"The Human Multiple Births Database (HMBD) gathers the number of twin births and the twinning rates for countries with reliable statistics. The database also provides statistics on other multiple births (i.e., triplets, quadruplets, etc.) whenever possible. Although their frequency has increased even more than that of twins, they still constitute a minority, as most multiple deliveries involve twins.","geographic_granularity":"National","citation":"Human Multiple Births Database (Year). French Institute for Demographic Studies - INED (distributor). Extracted from: https:\/\/www.twinbirths.org (day\/month\/year)"},"schematype":"table","resources":[]}