{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T23:22:09Z","timestamp":1787613729007,"version":"build-2736575974"},"reference-count":29,"publisher":"Georg Thieme Verlag KG","issue":"12","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Am J Perinatol"],"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>This study aimed to evaluate inpatient COVID-19 vaccine uptake among pregnant and postpartum patients.<\/jats:p>\n                  <jats:p>Retrospective cohort study of patients admitted to the antepartum and postpartum services of two academic hospitals between April 2021 and July 2022. Patients were classified as \u201csufficiently vaccinated\u201d (fully vaccinated or not yet due for an additional dose) or \u201celigible for vaccination\u201d on admission. We used chi-square, independent samples t-test, and Wilcoxon's rank sum test to compare characteristics between the groups on admission. We used logistic regression to analyze factors associated with inpatient vaccination for antepartum and postpartum patients.<\/jats:p>\n                  <jats:p>Among 886 antepartum and 12,036 postpartum patients, 341 (38.5%) and 6,327 (52.6%) were sufficiently vaccinated at the time of admission, respectively. Factors associated with vaccination status on admission included age, race, ethnicity, marital status, insurance, smoking status, trimester of prenatal care initiation, obstetric history, comorbidities, and receipt of Tdap and influenza vaccinations during pregnancy. Among 545 eligible antepartum patients, 30 (5.5%) were vaccinated inpatient. Factors associated with inpatient antepartum vaccination included receipt of influenza vaccination during pregnancy (adjusted odds ratio [aOR]\u2009=\u20097.95, 95% confidence interval [CI]: 2.94\u201321.46), length of stay (aOR\u2009=\u20091.07, 95% CI: 1.03\u20131.11), and abruption (aOR\u2009=\u20096.20, 95% CI: 1.78\u201321.62). Among 5,709 eligible postpartum patients, 527 (9.2%) were vaccinated inpatient. Factors associated with inpatient postpartum vaccination included Black race (aOR\u2009=\u20091.45, 95% CI: 1.09\u20131.95), initiation of prenatal care in the second trimester compared with the first (aOR\u2009=\u20091.38, 95% CI: 1.08\u20131.77), gestational diabetes (aOR\u2009=\u20091.70, 95% CI: 1.25\u20132.30), receipt of Tdap (aOR\u2009=\u20091.47, 95% CI: 1.02\u20132.13) and influenza (aOR\u2009=\u20091.66, 95% CI: 1.32\u20132.09) vaccinations during pregnancy, and length of stay (aOR\u2009=\u20091.05, 95% CI: 1.00\u20131.11).<\/jats:p>\n                  <jats:p>Despite the availability of inpatient vaccination, COVID-19 vaccine uptake in this peripartum population was low. General vaccine acceptance and increased length of stay were associated with inpatient vaccination.<\/jats:p>","DOI":"10.1055\/a-2798-2960","type":"journal-article","created":{"date-parts":[[2026,2,21]],"date-time":"2026-02-21T00:33:11Z","timestamp":1771633991000},"page":"1561-1571","source":"Crossref","is-referenced-by-count":0,"title":["Factors Associated with Inpatient COVID-19 Vaccine Uptake for Pregnant and Postpartum People"],"prefix":"10.1055","volume":"43","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0678-0533","authenticated-orcid":false,"given":"Emily R.","family":"Burdette","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, Massachusetts, United States"},{"name":"Department of Obstetrics, Gynecology, and Reproductive Biology, Brigham and Women's Hospital, Massachusetts, United States"},{"name":"Department of Obstetrics and Gynecology, Christiana Hospital, Newark, Delaware United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrea","family":"Pelletier","sequence":"additional","affiliation":[{"name":"Department of Obstetrics, Gynecology, and Reproductive Biology, Brigham and Women's Hospital, Massachusetts, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Taylor S.","family":"Freret","sequence":"additional","affiliation":[{"name":"Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, Massachusetts, United States"},{"name":"Beth Israel Deaconess Medical Center, Boston, Massachusetts, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ilona T.","family":"Goldfarb","sequence":"additional","affiliation":[{"name":"Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, Massachusetts, United States"},{"name":"Stanford Health Care, Stanford, California, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Saba H.","family":"Berhie","sequence":"additional","affiliation":[{"name":"Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology, and Reproductive Biology, Brigham and Women's Hospital, Boston, Massachusetts, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"194","published-online":{"date-parts":[[2026,2,20]]},"reference":[{"issue":"44","key":"ref1","doi-asserted-by":"crossref","first-page":"1641","DOI":"10.15585\/mmwr.mm6944e3","article-title":"Update: Characteristics of symptomatic women of reproductive age with laboratory-confirmed SARS-CoV-2 infection by pregnancy status\u2014United States, January 22-October 3, 2020","volume":"69","author":"L D Zambrano","year":"2020","journal-title":"MMWR Morb Mortal Wkly Rep"},{"issue":"05","key":"ref2","doi-asserted-by":"crossref","first-page":"759","DOI":"10.1093\/infdis\/jiab626","article-title":"SARS-CoV-2 infection during pregnancy and associated perinatal health outcomes: a national US cohort study","volume":"225","author":"A K Regan","year":"2022","journal-title":"J Infect Dis"},{"issue":"03","key":"ref3","doi-asserted-by":"crossref","first-page":"473","DOI":"10.1097\/AOG.0000000000005100","article-title":"Coronavirus disease 2019 (COVID-19) vaccination in pregnancy","volume":"141","author":"M Prabhu","year":"2023","journal-title":"Obstet Gynecol"},{"issue":"24","key":"ref4","doi-asserted-by":"crossref","first-page":"2273","DOI":"10.1056\/NEJMoa2104983","article-title":"Preliminary findings of mRNA Covid-19 vaccine safety in pregnant persons","volume":"384","author":"T T Shimabukuro","year":"2021","journal-title":"N Engl J Med"},{"issue":"08","key":"ref5","doi-asserted-by":"crossref","first-page":"728","DOI":"10.1001\/jama.2021.11035","article-title":"Association between BNT162b2 vaccination and incidence of SARS-CoV-2 infection in pregnant women","volume":"326","author":"I Goldshtein","year":"2021","journal-title":"JAMA"},{"issue":"03","key":"ref6","doi-asserted-by":"crossref","first-page":"303.e1","DOI":"10.1016\/j.ajog.2021.03.023","article-title":"Coronavirus disease 2019 vaccine response in pregnant and lactating women: a cohort study","volume":"225","author":"K J Gray","year":"2021","journal-title":"Am J Obstet Gynecol"},{"issue":"23","key":"ref7","doi-asserted-by":"crossref","first-page":"2370","DOI":"10.1001\/jama.2021.7563","article-title":"Immunogenicity of COVID-19 mRNA vaccines in pregnant and lactating women","volume":"325","author":"A Y Collier","year":"2021","journal-title":"JAMA"},{"key":"ref8","doi-asserted-by":"crossref","first-page":"735394","DOI":"10.3389\/fcimb.2021.735394","article-title":"COVID-19 vaccination in pregnancy and lactation: current research and gaps in understanding","volume":"11","author":"L L Shook","year":"2021","journal-title":"Front Cell Infect 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