{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,30]],"date-time":"2026-10-30T12:08:46Z","timestamp":1793362126861,"version":"4.5.0"},"reference-count":26,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2024,3,17]],"date-time":"2024-03-17T00:00:00Z","timestamp":1710633600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2024,3,17]],"date-time":"2024-03-17T00:00:00Z","timestamp":1710633600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100003646","name":"National Health Insurance Service","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100003646","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Intl J Gynecology &amp;amp; Obste"],"published-print":{"date-parts":[[2024,8]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>The aim of the present study was to explore inequalities in antenatal care (ANC) in South Korea. Based on the guidelines of the WHO, we categorized less than eight visits to an obstetrical facility as insufficient ANC. We examined ANC inequalities associated with age, disability, nationality, income, and geographic accessibility.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We extracted delivery event claimed from 2013 to 2022 from the National Health Insurance Service database. By tracing back 270\u2009days from the delivery date, we counted the number of antenatal visits for each childbirth and calculated the proportion of women with insufficient ANC and assessed both absolute and relative inequalities for each population group. The logistic regression analysis for both underuse and overuse of ANC were conducted.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Out of 3\u2009416\u2009517 childbirths, 104\u2009109 women (3.0%) had fewer than eight ANC visits. Although the average number of ANC visits reached 18.7 in 2022, significant inequalities persisted across different population groups. The insufficient ANC rate was 28.1% for teenage women, 6.4% for disabled women, 10.7% for non\u2010Korean women, and 15.2% for dependents of medical aid households. Women with low income and those living in obstetric care underserved areas also exhibited higher ANC insufficiency. From 2021 to 2022, sufficiency in ANC decreased for teenage, disabled, and non\u2010Korean women, highlighting the effects of the COVID\u201019 pandemic.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Antenatal care inequalities are evident in South Korea's well\u2010resourced health system. There is a need for further investigation into these disparities and the qualitative aspects of maternity care services.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/ijgo.15459","type":"journal-article","created":{"date-parts":[[2024,3,18]],"date-time":"2024-03-18T02:59:06Z","timestamp":1710730746000},"page":"718-726","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Antenatal care inequalities in South Korea: An analysis of health insurance claims data (2013\u20132022) in a high\u2010resource, high\u2010use country"],"prefix":"10.1002","volume":"166","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1766-8432","authenticated-orcid":false,"given":"Saerom","family":"Kim","sequence":"first","affiliation":[{"name":"Department of Preventive Medicine College of Medicine, Inje University  Busan Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3473-0004","authenticated-orcid":false,"given":"Chanki","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Public Health, Graduate School of Public Health Seoul National University  Seoul Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8229-9613","authenticated-orcid":false,"given":"Jin\u2010Hwan","family":"Kim","sequence":"additional","affiliation":[{"name":"Institute of Health and Environment Seoul National University  Seoul Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2024,3,17]]},"reference":[{"key":"e_1_2_9_2_1","unstructured":"Health Insurance Review & Assessment Services National Health Insurance Service.National Health Insurance Statistical Yearbook 2021. Accessed Apr 17 2023.https:\/\/www.hira.or.kr\/bbsDummy.do?pgmid=HIRAA020045020000\/&brdScnBltNo=4&brdBltNo=2314"},{"key":"e_1_2_9_3_1","unstructured":"Statistics Korea.Infant mortality maternal mortality and perinatal mortality in 2021. Statistics Korea; 2022 Oct. Report No.: 11\u20101240000\u2010000652\u201010."},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.21896\/jksmch.2021.25.4.250"},{"issue":"3","key":"e_1_2_9_5_1","first-page":"799","article-title":"Data resource profile the national health information database of the national health insurance service in South Korea","volume":"46","author":"Seong SC","year":"2016","journal-title":"Int J Epidemiol"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/pds.3407"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.2147\/CLEP.S230589"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/bdr2.1954"},{"key":"e_1_2_9_9_1","volume-title":"WHO Recommendations on Antenatal Care for a Positive Pregnancy Experience","author":"World Health Organization","year":"2016"},{"key":"e_1_2_9_10_1","unstructured":"Ministry of Health and Welfare Korea.Obstetric Care Underserved Area Support Program Guideline 2022.2022.https:\/\/www.mohw.go.kr\/react\/jb\/sjb0406vw.jsp?PAR_MENU_ID=03&MENU_ID=030406&CONT_SEQ=370916"},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1468-0009.2010.00587.x"},{"key":"e_1_2_9_12_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10995-011-0752-6"},{"key":"e_1_2_9_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/S2214-109X(17)30325-X"},{"key":"e_1_2_9_14_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.2008.02067.x"},{"key":"e_1_2_9_15_1","doi-asserted-by":"publisher","DOI":"10.1111\/jmwh.12627"},{"key":"e_1_2_9_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.midw.2021.103123"},{"key":"e_1_2_9_17_1","doi-asserted-by":"publisher","DOI":"10.1093\/eurpub\/ckr164"},{"issue":"6","key":"e_1_2_9_18_1","article-title":"Provision and uptake of routine antenatal services: a qualitative evidence synthesis","author":"Downe S","year":"2019","journal-title":"Cochrane Database Syst Rev"},{"key":"e_1_2_9_19_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejogrb.2005.04.004"},{"key":"e_1_2_9_20_1","doi-asserted-by":"publisher","DOI":"10.1186\/1471-2458-10-527"},{"key":"e_1_2_9_21_1","doi-asserted-by":"publisher","DOI":"10.1111\/ppe.12804"},{"key":"e_1_2_9_22_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(16)31527-6"},{"key":"e_1_2_9_23_1","volume-title":"Research on Improving Pregnancy and Childbirth Support","author":"Kim S\u2010H","year":"2015"},{"key":"e_1_2_9_24_1","doi-asserted-by":"publisher","DOI":"10.1111\/ppe.12782"},{"issue":"6","key":"e_1_2_9_25_1","article-title":"Routine ultrasound in late pregnancy (after 24\u2009weeks' gestation)","author":"Bricker L","year":"2015","journal-title":"Cochrane Database Syst Rev"},{"key":"e_1_2_9_26_1","doi-asserted-by":"publisher","DOI":"10.1136\/bmjgh-2021-005671"},{"key":"e_1_2_9_27_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12884-022-05331-5"}],"container-title":["International Journal of Gynecology &amp; Obstetrics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/ijgo.15459","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/ijgo.15459","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/ijgo.15459","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,3,8]],"date-time":"2026-03-08T11:56:56Z","timestamp":1772971016000},"score":1,"resource":{"primary":{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/10.1002\/ijgo.15459"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,3,17]]},"references-count":26,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2024,8]]}},"alternative-id":["10.1002\/ijgo.15459"],"URL":"https:\/\/doi.org\/10.1002\/ijgo.15459","archive":["Portico"],"relation":{},"ISSN":["0020-7292","1879-3479"],"issn-type":[{"value":"0020-7292","type":"print"},{"value":"1879-3479","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,3,17]]},"assertion":[{"value":"2023-10-10","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2024-02-21","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2024-03-17","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}