{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T14:54:38Z","timestamp":1785423278218,"version":"3.56.0"},"reference-count":38,"publisher":"Georg Thieme Verlag KG","issue":"01","funder":[{"name":"Kaiser Permanente Community Benefits Funds"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Am J Perinatol"],"published-print":{"date-parts":[[2026,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Preeclampsia remains one of the leading causes of perinatal mortality worldwide. Little is known about the modifiable risk factors that can be identified and addressed early in pregnancy to reduce the risk of preeclampsia and its associated adverse outcomes. We sought to determine if there is a synergistic effect of prepregnancy body-mass index and obstructive sleep apnea (OSA) on the risk of preeclampsia.<\/jats:p>\n                  <jats:p>We conducted a retrospective cohort study of singleton pregnancies delivered in Kaiser Permanente Southern California hospitals between January 1, 2010, and December 31, 2020 (n\u2009=\u2009342,349). Preeclampsia and sleep apnea were ascertained using clinical diagnosis codes. Body mass index (BMI) in kg\/m2 measured during prenatal care visits was categorized as normal (18.5\u201324.9), overweight (25\u201329.9), and obese (\u226530). Multivariable logistic regression was used to estimate adjusted relative risks (aRR) and 95% confidence intervals (CI).<\/jats:p>\n                  <jats:p>Compared with normal weight in pregnancy, overweight (aRR : 1.6; 95% CI: 1.5, 1.7) and obese BMI (aRR: 2.5; 95% CI: 2.4, 2.6) were associated with an increased risk of preeclampsia. Independent of prepregnancy body-mass index, a pregnancy with OSA was associated with an increased risk of preeclampsia (aRR: 2.2; 95% CI: 1.8, 2.6). Compared with normal weight without the diagnosis of OSA in a pregnancy, overweight (aRR: 4.6; 95% CI: 2.9, 7.4) and obese BMI (aRR: 3.8; 95% CI: 3.2, 4.6) with the diagnosis of OSA were associated with an increased risk of preeclampsia.<\/jats:p>\n                  <jats:p>OSA and elevated body-mass index have an independent and additive relationship with preeclampsia. Overweight women at risk of preeclampsia should be advised of a higher likelihood of developing preeclampsia when both conditions occur together and may benefit from close monitoring and early interventions for these modifiable risk factors.<\/jats:p>","DOI":"10.1055\/a-2576-4082","type":"journal-article","created":{"date-parts":[[2025,4,7]],"date-time":"2025-04-07T18:57:04Z","timestamp":1744052224000},"page":"015-022","source":"Crossref","is-referenced-by-count":2,"title":["Joint Effect of Body Mass Index and Obstructive Sleep Apnea on Preeclampsia Risk"],"prefix":"10.1055","volume":"43","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8380-0390","authenticated-orcid":false,"given":"Nana A.","family":"Mensah","sequence":"additional","affiliation":[{"name":"Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, California"},{"name":"Department of Public Health, Brigham Young University, Provo, Utah"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael J.","family":"Fassett","sequence":"additional","affiliation":[{"name":"Department of Obstetrics & Gynecology, Kaiser Permanente West Los Angeles Medical Center, California"},{"name":"Department of Clinical Science, Kaiser Permanente Bernard J. Tyson School of Medicine, Pasadena, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Morgan R.","family":"Peltier","sequence":"additional","affiliation":[{"name":"Department of Psychiatry and Behavioral Health, Jersey Shore University Medical Center, Neptune, New Jersey"},{"name":"Department of Psychiatry and Behavioral Health, Hackensack Meridian School of Medicine, Nutley, New Jersey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiaxiao","family":"Shi","sequence":"additional","affiliation":[{"name":"Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vicki Y.","family":"Chiu","sequence":"additional","affiliation":[{"name":"Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nehaa","family":"Khadkha","sequence":"additional","affiliation":[{"name":"Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3610-8841","authenticated-orcid":false,"given":"Darios","family":"Getahun","sequence":"additional","affiliation":[{"name":"Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, California"},{"name":"Department of Health Systems Science, Kaiser Permanente Bernard J. 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