{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T03:43:27Z","timestamp":1789962207920,"version":"4.0.1"},"reference-count":45,"publisher":"American Medical Association (AMA)","issue":"12","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JAMA Netw Open"],"abstract":"<jats:sec id=\"ab-zoi251249-4\">\n                    <jats:title>Importance<\/jats:title>\n                    <jats:p>Maternal vitamin D level during pregnancy has been repeatedly reported to be associated with early childhood caries (ECCs) in offspring, yet the conclusions remain inconsistent.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"ab-zoi251249-5\">\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>To evaluate the association between maternal vitamin D status in different trimesters during pregnancy and offspring dental caries.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"ab-zoi251249-6\">\n                    <jats:title>Design, Setting, and Participants<\/jats:title>\n                    <jats:p>This prospective cohort study was based on the Zhoushan Pregnant Women Cohort, which enrolled pregnant women between August 2011 to May 2021, and followed up on their offspring until November 2022, at Zhoushan Maternal and Child Health Hospital in Zhoushan, Zhejiang Province, China. Data were analyzed from October 2024 to April 2025.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"ab-zoi251249-7\">\n                    <jats:title>Exposures<\/jats:title>\n                    <jats:p>Maternal plasma 25-hydroxyvitamin D (25[OH]D) levels measured in the first, second, and third trimesters and vitamin D deficiency (VDD).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"ab-zoi251249-8\">\n                    <jats:title>Main Outcomes and Measures<\/jats:title>\n                    <jats:p>The primary outcome was offspring ECCs. Secondary outcomes included the decayed, missing, or filled teeth (dmft, with lowercase term denoting primary, instead of permanent, dentition) index and caries rate (the ratio of dmft to number of erupted teeth).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"ab-zoi251249-9\">\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The cohort included 4109 mother-offspring pairs (maternal median [IQR] age, 29.0 [27.0-32.0] years; offspring gestational age at birth, 39.0 [38.0-40.0] weeks; 2121 males [51.6%]), of whom 960 children had ECCs and 3149 did not. Higher maternal 25(OH)D levels were associated with reduced odds of ECCs in offspring (first trimester odds ratio [OR], 0.98 [95% CI, 0.97-0.99], false discovery rate [FDR]-adjusted\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      \u2009=\u2009.009; second trimester OR, 0.98 [95% CI, 0.97-0.99], FDR-adjusted\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      \u2009=\u2009.001; third trimester OR, 0.99 [95% CI, 0.98-1.00], FDR-adjusted\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      \u2009=\u2009.009), while Cox proportional hazards regression models showed protective benefits of 25(OH)D levels against ECC risk throughout all trimesters. Categorical analyses suggested elevated odds of ECCs in offspring of mothers with vitamin D insufficiency, VDD, or severe VDD compared with the vitamin D sufficiency group, although the statistical significance of some associations was attenuated after FDR correction. Moreover, higher maternal 25(OH)D levels (\u03bcg\/mL) were associated with lower dmft scores (third trimester: \u03b2\u2009[SE]\u2009=\u2009\u22129.97 [3.97];\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      \u2009=\u2009.01) and caries rate (third trimester: \u03b2\u2009[SE]\u2009=\u2009\u221250.87 [19.78];\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      \u2009=\u2009.01). Generalized estimation equation models also confirmed the inverse associations.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"ab-zoi251249-10\">\n                    <jats:title>Conclusions and Relevance<\/jats:title>\n                    <jats:p>In this cohort study, maternal 25(OH)D levels throughout pregnancy were inversely associated with odds of offspring ECCs. These findings support the potential benefit of vitamin D supplementation before or during pregnancy in reducing the risk and severity of childhood dental caries.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1001\/jamanetworkopen.2025.46166","type":"journal-article","created":{"date-parts":[[2025,12,2]],"date-time":"2025-12-02T16:00:27Z","timestamp":1764691227000},"page":"e2546166","source":"Crossref","is-referenced-by-count":4,"title":["Vitamin D Levels During Pregnancy and Dental Caries in Offspring"],"prefix":"10.1001","volume":"8","author":[{"given":"Nuo","family":"Xu","sequence":"first","affiliation":[{"name":"Department of Public Health, and Department of Anesthesiology, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China"},{"name":"Department of Epidemiology and Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, 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China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haibo","family":"Zhou","sequence":"additional","affiliation":[{"name":"Department of Public Health, and Department of Anesthesiology, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China"},{"name":"Department of Epidemiology and Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haoyue","family":"Cheng","sequence":"additional","affiliation":[{"name":"Department of Public Health, and Department of Anesthesiology, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China"},{"name":"Department of Epidemiology and Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, 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China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hui","family":"Liu","sequence":"additional","affiliation":[{"name":"Clinical Research Center, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lina","family":"Yu","sequence":"additional","affiliation":[{"name":"Department of Public Health, and Department of Anesthesiology, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China"},{"name":"Zhejiang Key Laboratory of Pain Perception and Neuromodulation, Hangzhou, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Danqing","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Obstetrics, Women\u2019s Hospital, School of Medicine, Zhejiang University, Hangzhou, 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