{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,29]],"date-time":"2026-01-29T23:17:49Z","timestamp":1769728669520,"version":"3.49.0"},"reference-count":39,"publisher":"Walter de Gruyter GmbH","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2021,5,26]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:sec id=\"j_jpm-2020-0133_abs_001_w2aab3b7b6b1b6b1aab1c16b1Aa\">\n                  <jats:title>Objectives<\/jats:title>\n                  <jats:p>We estimated the degree to which the association between race and spontaneous recurrent preterm delivery is mediated by the timing of the first prenatal care visit.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec id=\"j_jpm-2020-0133_abs_002_w2aab3b7b6b1b6b1aab1c16b2Aa\">\n                  <jats:title>Methods<\/jats:title>\n                  <jats:p>A retrospective population-based cohort study was conducted using the U.S. National Center for Health Statistics Natality Files. We identified 644,576 women with a prior PTB who delivered singleton live neonates between 2011 and 2017. A mediation analysis was conducted using log-binomial regression to evaluate the mediating effect of timing of first prenatal care visit.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec id=\"j_jpm-2020-0133_abs_003_w2aab3b7b6b1b6b1aab1c16b3Aa\">\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>During the seven-year period, 349,293 (54.2%) White non-Hispanic women, 131,296 (20.4%) Black non-Hispanic women, 132,367 (20.5%) Hispanic women, and 31,620 (4.9%) Other women had a prior preterm delivery. The risk of late prenatal care initiation was higher in Black non-Hispanic women, Hispanic women, and Other women (women of other racial\/ethnic backgrounds) compared to White non-Hispanic women, and the risk of preterm delivery was higher in women with late prenatal care initiation. Between 8 and 15% of the association between race and spontaneous recurrent preterm delivery acted through the delayed timing of the first prenatal care visit.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec id=\"j_jpm-2020-0133_abs_004_w2aab3b7b6b1b6b1aab1c16b4Aa\">\n                  <jats:title>Conclusions<\/jats:title>\n                  <jats:p>Racial disparities in spontaneous recurrent preterm delivery rates can be partly, but not primarily, attributed to timing of first prenatal care visit.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1515\/jpm-2020-0133","type":"journal-article","created":{"date-parts":[[2020,12,22]],"date-time":"2020-12-22T10:48:34Z","timestamp":1608634114000},"page":"448-454","source":"Crossref","is-referenced-by-count":1,"title":["Racial disparities in recurrent preterm delivery risk: mediation analysis of prenatal care timing"],"prefix":"10.1515","volume":"49","author":[{"given":"Khalidha","family":"Nasiri","sequence":"first","affiliation":[{"name":"Schulich School of Medicine, Western University , London, ON , Canada"},{"name":"Department of Epidemiology and Biostatistics , McGill University , Montreal, QC , Canada"},{"name":"Center for Clinical Epidemiology and Community Studies, Jewish General Hospital , Montreal, QC , Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Erica E. M.","family":"Moodie","sequence":"additional","affiliation":[{"name":"Department of Epidemiology and Biostatistics , McGill University , Montreal, QC , Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Haim A.","family":"Abenhaim","sequence":"additional","affiliation":[{"name":"Center for Clinical Epidemiology and Community Studies, Jewish General Hospital , Montreal, QC , Canada"},{"name":"Department of Obstetrics and Gynecology , Jewish General Hospital, McGill University , Montreal , QC, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"374","published-online":{"date-parts":[[2020,12,18]]},"reference":[{"key":"2023040100375547257_j_jpm-2020-0133_ref_001_w2aab3b7b6b1b6b1ab2b2b1Aa","doi-asserted-by":"crossref","unstructured":"Liu, L, Johnson, HL, Cousens, S, Perin, J, Scott, S, Lawn, JE, et al.. Global, regional, and national causes of child mortality: an updated systematic analysis for 2010 with time trends since 2000. 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