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- Title
Vitamin D Deficiency Is Associated With Poor Ovarian Stimulation Outcome in PCOS but Not Unexplained Infertility.
- Authors
Butts, Samantha F; Seifer, David B; Koelper, Nathanael; Senapati, Suneeta; Sammel, Mary D; Hoofnagle, Andrew N; Kelly, Andrea; Krawetz, Steven A; Santoro, Nanette; Zhang, Heping; Diamond, Michael P; Legro, Richard S; Eunice Kennedy Shriver National Institute of Child Health and Human Development Reproductive Medicine Network
- Abstract
<bold>Context: </bold>The impact of vitamin D deficiency on the success of ovarian stimulation according to underlying infertility diagnosis has not been investigated.<bold>Objective: </bold>To evaluate the relationship between vitamin D deficiency and reproductive outcomes after ovarian stimulation in women with either polycystic ovary syndrome (PCOS) or unexplained infertility.<bold>Design: </bold>Retrospective cohort study.<bold>Setting: </bold>Analysis of randomized controlled trial (RCT) data.<bold>Participants: </bold>Participants from the Pregnancy in Polycystic Ovary Syndrome II (PPCOS II) RCT (n = 607); participants from the Assessment of Multiple Intrauterine Gestations from Ovarian Stimulation (AMIGOS) RCT of unexplained infertility (n = 647).<bold>Interventions: </bold>Serum 25(OH)D levels measured in banked sera.<bold>Main Outcome Measures: </bold>Primary: live birth; secondary: ovulation (PPCOS II), pregnancy, and early pregnancy loss.<bold>Results: </bold>In PPCOS II, subjects with vitamin D deficiency [25(OH)D < 20 ng/mL or 50 nmol/L] were less likely to ovulate (adjusted OR, 0.82; 95% CI, 0.68 to 0.99; P = 0.04) and experienced a 40% lower chance of live birth (adjusted OR, 0.63; 95% CI, 0.41 to 0.98; P = 0.04) than those not deficient. In AMIGOS, no significant association between vitamin D deficiency and live birth was noted. In pregnant subjects from both studies, vitamin D deficiency was associated with elevated risk of early pregnancy loss (OR, 1.6; 95% CI, 1.0 to 2.6; P = 0.05).<bold>Conclusions: </bold>In this investigation of women pursuing ovarian stimulation, the association between vitamin D deficiency and diminished live birth relied on carrying the diagnosis of PCOS and was not observed in unexplained infertility. Given the generally modest success of ovarian stimulation, addressing vitamin D deficiency may prove an important treatment adjunct for many infertile women.
- Publication
Journal of Clinical Endocrinology & Metabolism, 2018, pN.PAG
- ISSN
0021-972X
- Publication type
Academic Journal
- DOI
10.1210/jc.2018-00750