{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T05:00:12Z","timestamp":1790312412088,"version":"4.1.0"},"reference-count":54,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T00:00:00Z","timestamp":1790294400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100012166","name":"National Key Research and Development Program of China","doi-asserted-by":"publisher","award":["2024YFC2706700"],"award-info":[{"award-number":["2024YFC2706700"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003392","name":"Natural Science Foundation of Fujian Province","doi-asserted-by":"publisher","award":["2023J011229 & 2024J011059"],"award-info":[{"award-number":["2023J011229 & 2024J011059"]}],"id":[{"id":"10.13039\/501100003392","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Endocrinol."],"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>\n                      Polycystic ovary syndrome (PCOS) is a common endocrine disorder affecting reproductive-aged women, many of whom require\n                      <jats:italic>in vitro<\/jats:italic>\n                      fertilization (IVF) or intracytoplasmic sperm injection (ICSI) for infertility. Dyslipidemia frequently coexists with PCOS and may independently affect reproductive outcomes, yet evidence on its association with cumulative live birth rate (CLBR) remains limited. This study aimed to investigate the relationship between lipid metabolism parameters and CLBR in PCOS patients undergoing their first IVF\/ICSI cycle, and to construct and validate a nomogram for individualized CLBR prediction.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This retrospective analysis included 413 PCOS patients under 40 years old who underwent their first IVF\/ICSI cycle between January 2022 and May 2024. The cohort was randomly split into a training set (n = 290) and a validation set (n = 123) at a 7:3 ratio. Lasso regression with 10-fold cross-validation was used for variable selection, followed by leave-one-variable-out sensitivity analysis. Multivariate logistic regression was then applied to build the prediction model. Internal validation employed bootstrap resampling with 1,000 iterations. Model performance was assessed by AUC, calibration curves, and decision curve analysis. A nomogram was constructed for clinical application.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Result<\/jats:title>\n                    <jats:p>\n                      Multivariate analysis identified high-quality embryo rate (OR\u00a0=\u00a01.025, 95% CI: 1.010\u20131.041,\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0=\u00a00.001) and high-quality blastocyst rate (OR\u00a0=\u00a01.014, 95% CI: 1.002\u20131.026,\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0=\u00a00.025) as independent protective factors. Elevated triglycerides (TG) (OR\u00a0=\u00a00.734, 95% CI: 0.555\u20130.969,\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0=\u00a00.029) and higher BMI (OR\u00a0=\u00a00.915, 95% CI: 0.838\u20131.000,\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0=\u00a00.049) were independent risk factors for reduced CLBR. The model achieved AUCs of 0.804 and 0.760 in the training and validation sets, respectively. Calibration was satisfactory (Brier score = 0.152), and DCA confirmed positive net benefit.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Dyslipidemia, primarily elevated TG, is independently associated with lower CLBR in PCOS patients undergoing IVF\/ICSI. Our nomogram incorporates TG, apolipoprotein A, BMI, trigger-day estradiol and progesterone, high-quality embryo rate and high-quality blastocyst rate. This tool may serve as a foundation for future external validation and exploratory risk stratification, though clinical application requires prospective multicenter studies.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fendo.2026.1924206","type":"journal-article","created":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T04:27:56Z","timestamp":1790310476000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Associations of lipid metabolic parameters with cumulative live birth rate in PCOS patients undergoing IVF\/ICSI and development of a nomogram-based predictive model"],"prefix":"10.3389","volume":"17","author":[{"given":"Xiaofeng","family":"Chen","sequence":"first","affiliation":[{"name":"Center of Reproductive Medicine, Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University","place":["Fuzhou, Fujian, China"]},{"name":"Department of Maternal Health, Ningde Maternity and Child Health Hospital","place":["Ningde, Fujian, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shumin","family":"Qiu","sequence":"additional","affiliation":[{"name":"Center of Reproductive Medicine, Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University","place":["Fuzhou, Fujian, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lili","family":"Zheng","sequence":"additional","affiliation":[{"name":"Department of Gynecology, Mindong Hospital Affiliated to Fujian Medical University","place":["Ningde, Fujian, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianqing","family":"Yang","sequence":"additional","affiliation":[{"name":"Department of Maternal Health, Ningde Maternity and Child Health Hospital","place":["Ningde, Fujian, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bangjing","family":"Huang","sequence":"additional","affiliation":[{"name":"Department of Maternal Health, Ningde Maternity and Child Health Hospital","place":["Ningde, Fujian, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Beihong","family":"Zheng","sequence":"additional","affiliation":[{"name":"Center of Reproductive Medicine, Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University","place":["Fuzhou, Fujian, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huiling","family":"Xu","sequence":"additional","affiliation":[{"name":"Center of Reproductive Medicine, Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University","place":["Fuzhou, Fujian, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,9,25]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(26)00717-8","article-title":"Polyendocrine metabolic ovarian syndrome, the new name for polycystic ovary syndrome: A multistep global consensus process","volume":"407","author":"Teede","year":"2026","journal-title":"Lancet"},{"key":"B2","doi-asserted-by":"publisher","DOI":"10.1016\/j.metop.2026.100479","article-title":"What\u2019s in a name? 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