Erin S. LeBlanc, MD, MPH

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Dr. Erin LeBlanc is an epidemiologist and board-certified adult endocrinologist. Her research focuses on conditions that affect women, including menopause, obesity, osteoporosis, diabetes, and vitamin D deficiency.

In 2011, Dr. LeBlanc led a systematic evidence review on obesity to support the U.S. Preventive Services Task Force. In 2014, she will lead a systematic evidence review regarding screening for vitamin D. Currently, she is leading a study to examine risk factors associated with fractures among people taking bisphosphonates. The study is comparing people who suffered fractures during bisphosphonate therapy to people who did not, to identify characteristics that may differ.

Dr. LeBlanc is a co-investigator on the Study of Osteoporotic Fractures (SOF), a nearly 30-year-old study that is linking its database with Medicare claims data for nearly 10,000 women to examine relationships between aging and cognitive function, physical performance, bone mineral density, and body weight.

Dr. LeBlanc came to CHR in 2009 from Oregon Health & Science University (OHSU), where she proposed a randomized trial testing the efficacy of vitamin D repletion on body composition in perimenopausal women. She served as the Principal Investigator for the Women’s Health Initiative study, which examined heart disease, cancer, and osteoporosis in postmenopausal women.

Dr. LeBlanc graduated cum laude from the Yale University School of Medicine. Following her internal medicine residency at Stanford University and before joining OHSU, she completed a fellowship in women’s health at the Portland VA Medical Center. She is a member of the Endocrine Society and the American Diabetes Association. She remains an affiliate assistant professor of endocrinology at OHSU.


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Recent Publications

Engelman CD, Meyers KJ, Iyengar SK, Liu Z, Karki CK, Igo RP Jr, Truitt B, Robinson J, Sarto GE, Wallace R, Blodi BA, Klein ML, Tinker L, LeBlanc ES, Jackson RD, Song Y, Manson JE, Mares JA, Millen AE. Vitamin D intake and season modify the effects of the GC and CYP2R1 genes on 25-hydroxyvitamin D concentrations. The Journal of Nutrition 2013 Jan; 143(1):17-26. [Epub 2012 Nov 28] PMCID: PMC3521459 [Available on 2014/1/1]   Full text
Espeland MA, Shumaker SA, Leng I, Manson JE, Brown CM, LeBlanc ES, Vaughan L, Robinson J, Rapp SR, Goveas JS, Lane D, Wactawski-Wende J, Stefanick ML, Li W, Resnick SM. Long-term effects on cognitive function of postmenopausal hormone therapy prescribed to women aged 50 to 55 years. JAMA Intern Med 2013 Jun 24;1-8. [Epub 2013 Jun 24]   PubMed abstract
LeBlanc ES, Perrin N, Johnson JD Jr., Ballatore A, Hillier T. Over-the-counter and compounded vitamin D: Is potency what we expect? JAMA Internal Medicine 2013 Apr 8; 173(7):585-6.   PubMed abstract
Lee CG, Schwartz AV, Yaffe K, Hillier TA, LeBlanc ES, Cawthon PM. Changes in physical performance in older women by diabetes presence and treatmen diabetes care. J Am Geriatr Soc 2013 Nov;61(11):1872-8. Epub 2013 Oct 28. PMCID: PMC3827698 [Available on 2014/11/1]   Full text
Meyers KJ, Johnson EJ, Bernstein PS, Iyengar SK, Engelman C, Karki CK, Liu Z, Igo DRP Jr, Truitt B, Klein M, Snodderly DM, Blodi B, Gehrs K, Sarto G, Wallace R, Robinson J, LeBlanc E, Millen AE, Hageman G, Tinker L, Mares JA. Genetic predictors of optical density of lutein and zeaxanthin in retinas of older women in the Carotenoids in Age-Related Eye Disease Study. Investigative Ophthalmology and Visual Sciences. 2013 Mar 28;54(3):2333-45. doi: 10.1167/iovs.12-10867.   Full text
Meyers KJ, Mares JA, Igo RP Jr, Truitt B, Liu Z, Millen AE, Klein M, Johnson EJ, Engelman CD, Karki CK, Blodi B, Gehrs K, Tinker L, Wallace R, Robinson J, LeBlanc E, Sarto G, Bernstein PS, SanGiovanni JP, Iyengar SK. Genetic Determinants of Age-Related Macular Degeneration in the Carotenoids in Age-Related Eye Disease Study (CAREDS). Invest Ophthalmol Vis Sci. 2013 Mar 28;54(3):2333-45. doi: 10.1167/iovs.12-10867.   Full text
Prentice RL, Pettinger MB, Jackson RD, Wactawski-Wende J, LaCroix AZ, Anderson GL, Chlebowski RT, Manson JE, Van Horn L, Vitolins MZ, Datta M, LeBlanc ES, Cauley JA, Rossouw J. Health risks and benefits from calcium and vitamin D supplementation: Women's Health Initiative clinical trial and cohort study. Osteoporosis International 2013 Feb; 24(2):567-80. [Epub 2012 Dec 4] PMCID: PMC3557387    Full text
Hillier TA, Lui LY, Kado DM, LeBlanc ES, Vesco KK, Bauer DC, Cauley JA, Ensrud KE, Black DM, Hochberg MC, Cummings SR. Height loss in older women: Risk of hip fracture and mortality independent of vertebral fractures. Journal of Bone and Mineral Research 2012 Jan; 27(1):153-9[Epub 2011 Nov 9] PMCID: PMC3622730   Full text
Kroenke CH, Caan BJ, Stefanick ML, Anderson G, Brzyski R, Johnson KC, LeBlanc E, Lee C, La Croix AZ, Lui Park H, Sims ST, Vitolins M, Wallace R. Effects of a dietary intervention and weight change on vasomotor symptoms in the Women’s Health Initiative. Menopause 2012 Sep; 19(9):980-8. PMCID: PMC3428489 [Available on 2013/9/1]   Full text
LeBlanc ES, Rizzo JH, Pedula KL, Ensrud KE, Cauley J, Hochberg M, Hillier TA; Study Of Osteoporotic Fractures. Associations between 25-hydroxyvitamin D and weight gain in elderly women. Journal of Womens Health (Larchmt) 2012 Oct; 21(10):1066-73. [Epub 2012 Jun 25] PMCID: PMC3466912 [Available on 2013/10/1]   Full text

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