{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T14:28:53Z","timestamp":1787668133215,"version":"build-2736575974"},"reference-count":40,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2023,4,19]],"date-time":"2023-04-19T00:00:00Z","timestamp":1681862400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Fundaci\u00f3n Navarro Tripodi"},{"name":"FAES FARMA"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nutrients"],"abstract":"<jats:p>The main source of vitamin D results from skin sunlight exposure. Vitamin D deficiency (VDD) is linked to several adverse events during pregnancy. While performing a cross-sectional study with 886 pregnant women in Elda (Spain) from September 2019 to July 2020 to determine the association of VDD with gestational diabetes mellitus in relation to body mass index, a strict lockdown (SL) due to the COVID-19 pandemic was declared from 15 March 2020 to 15 May 2020. To determine if VDD prevalence in the local population of pregnant women was influenced by SL, a retrospective cross-sectional study was conducted to estimate the prevalence odds ratio (POR) for the association of VDD and SL. A crude logistic regression model was calculated, and then further adjusted by the biweekly measured vitamin D-specific UVB dose in our geographical area. The POR during SL was 4.0 (95%CI = 2.7\u20135.7), with a VDD prevalence of 77.8% in the quarantine period. Our results revealed that VDD prevalence in pregnant women was influenced by SL. This valuable information could guide us in future if public officials order the population to stay indoors for any given reason.<\/jats:p>","DOI":"10.3390\/nu15081972","type":"journal-article","created":{"date-parts":[[2023,4,20]],"date-time":"2023-04-20T01:42:39Z","timestamp":1681954959000},"page":"1972","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Influence of Strict Lockdown on Vitamin D Deficiency in Pregnant Women: A Word of Caution"],"prefix":"10.3390","volume":"15","author":[{"given":"Nuria","family":"Ag\u00fcero-Domenech","sequence":"first","affiliation":[{"name":"Department of Gynaecology and Obstetrics, Hospital General Universitario Elda, 03600 Elda, Spain"},{"name":"Department of Public Health, History of Science and Gynaecology, Miguel Hern\u00e1ndez University, 03550 San Juan, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1586-5504","authenticated-orcid":false,"given":"Eduardo","family":"Bernabeu","sequence":"additional","affiliation":[{"name":"Department of Cardiac Surgery, Hospital General Universitario Dr. Balmis, 03010 Alicante, Spain"},{"name":"ISABIAL (\u201cInstituto de Investigaci\u00f3n Sanitaria y Biom\u00e9dica de Alicante\u201d), 03010 Alicante, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3508-2291","authenticated-orcid":false,"given":"Antonio","family":"Garc\u00eda-Valent\u00edn","sequence":"additional","affiliation":[{"name":"Department of Cardiac Surgery, Hospital General Universitario Dr. Balmis, 03010 Alicante, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ana","family":"Sarri\u00f3n","sequence":"additional","affiliation":[{"name":"Department of Gynaecology and Obstetrics, Hospital General Universitario Elda, 03600 Elda, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Silvia","family":"Jover","sequence":"additional","affiliation":[{"name":"Department of Gynaecology and Obstetrics, Hospital General Universitario Elda, 03600 Elda, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Javier","family":"Baranda","sequence":"additional","affiliation":[{"name":"Department of Gynaecology and Obstetrics, Hospital General Universitario Elda, 03600 Elda, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6929-9587","authenticated-orcid":false,"given":"Ernesto","family":"Cort\u00e9s-Castell","sequence":"additional","affiliation":[{"name":"Department of Pharmacology, Pediatrics and Organic Chemistry, Miguel Hern\u00e1ndez University, 03550 San Juan, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vicente","family":"Gil-Guill\u00e9n","sequence":"additional","affiliation":[{"name":"Department of Clinical Medicine, Miguel Hern\u00e1ndez University, 03550 San Juan, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mar\u00eda J.","family":"Garc\u00eda-Teruel","sequence":"additional","affiliation":[{"name":"Department of Gynaecology and Obstetrics, Hospital General Universitario Elda, 03600 Elda, Spain"},{"name":"Department of Public Health, History of Science and Gynaecology, Miguel Hern\u00e1ndez University, 03550 San Juan, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,4,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1689S","DOI":"10.1093\/ajcn\/80.6.1689S","article-title":"Overview of general physiologic features and functions of vitamin D","volume":"80","author":"DeLuca","year":"2004","journal-title":"Am. 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