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The rate of ACS and the risk factors associated with ACS use in Chinese population is unclear. This study aimed to investigate the rate of ACS use and the associated perinatal factors in the tertiary maternal centers of China.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Methods<\/jats:title>\n                <jats:p>Data for this retrospective observational study came from a clinical database of preterm infants established by REIN-EPIQ trial. All infants born at\u2009&lt;\u200934\u00a0weeks of gestation and admitted to 18 tertiary maternal centers in China from 2017 to 2018 were enrolled. Any dose of dexamethasone was given prior to preterm delivery was recorded and the associated perinatal factors were analyzed.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>The rate of ACS exposure in this population was 71.2% (range 20.2 \u2013 92%) and the ACS use in these 18 maternal centers varied from 20.2 to 92.0% in this period. ACS exposure was higher among women with preeclampsia, caesarean section delivery, antibiotic treatment and who delivered infants with lower gestational age and small for gestational age. ACS use was highest in the 28\u201331\u00a0weeks gestational age group, and lowest in the under 26\u00a0weeks of gestational age group (x<jats:sup>2<\/jats:sup>\u2009=\u200965.478, <jats:italic>P<\/jats:italic>\u2009&lt;\u20090.001). ACS exposure was associated with lower odds of bronchopulmonary dysplasia or death (OR, 0.778; 95% CI 0.661 to 0.916) and invasive respiration requirement (OR, 0.668; 95% CI 0.585 to 0.762) in this population.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusion<\/jats:title>\n                <jats:p>The ACS exposure was variable among maternity hospitals and quality improvement of ACS administration is warranted.\n<\/jats:p>\n              <\/jats:sec>","DOI":"10.1186\/s12887-022-03529-2","type":"journal-article","created":{"date-parts":[[2022,8,3]],"date-time":"2022-08-03T08:07:53Z","timestamp":1659514073000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["The variation of antenatal corticosteroids administration for the singleton preterm birth in China, 2017 to 2018"],"prefix":"10.1186","volume":"22","author":[{"given":"Qing","family":"Wang","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Siyuan","family":"Jiang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xuefeng","family":"Hu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chao","family":"Chen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yun","family":"Cao","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shoo Kim","family":"Lee","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jiang-Qin","family":"Liu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"name":"On behalf of the Reduction of Infection in Neonatal Intensive 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We confirm that the data analysis and the publication were carried out in accordance with the ethical guidelines and regulations of the Helsinki declaration.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"The written consent from the parents was waivered by the ethical committee regarding to the retrospective data abstraction from each hospital. The data from each infant was anlyzed anonlymously by statisticians of the REIN-EPIQ study group.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"No financial or nonfinancial benefits have been received or will be received from any party related directly or indirectly to the subject of this article.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing of interests"}}],"article-number":"469"}}