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Mead‐Harvey, Carolyn

https://orcid.org/0000-0001-6887-0430

Mayo Clinic

Mayo Clinic in Arizona

Citations 57

Brain dysfunction and thyroid antibodies: autoimmune diagnosis and misdiagnosis
Valencia-Sánchez, Cristina , Pittock, Sean J. , Mead‐Harvey, Carolyn , Dubey, Divyanshu , López‐Chiriboga, A. Sebastian , Trenerry, Max R., Zalewski, Nicholas L. , Ζεκερίδου, Αναστασία , Lopez-Chiriboga, Sebastian, Pittock, S J , Dubey, Divyanshu , Valencia Sanchez, Cristina , Flanagan, Eoin P. , McKeon, Andrew

Brain Communications | January 6, 2021 | Volume: 3 | Issue: 2 | Pages: No page available

10.1093/braincomms/fcaa233 Get It

Abstract Hashimoto encephalopathy, also known as steroid-responsive encephalopathy associated with autoimmune thyroiditis, has been defined by sub-acute onset encephalopathy, with elevated thyroid antibodies, and immunotherapy responsiveness, in the absence of specific neural autoantibodies. We aimed to retrospectively review 144 cases referred with suspected Hashimoto encephalopathy over a 13-year period, and to determine the clinical utility of thyroid antibodies in the course of evaluation of those patients. One hundred and forty-four patients (all thyroid antibody positive) were included; 72% were women. Median age of symptom onset was 44.5 years (range, 10–87). After evaluation of Mayo Clinic, 39 patients (27%) were diagnosed with an autoimmune CNS disorder [autoimmune encephalopathy (36), dementia (2) or epilepsy (1)]. Three of those 39 patients had neural-IgGs detected (high glutamic acid decarboxylase-65, α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor-receptor and neural-restricted unclassified antibody), and 36 were seronegative. Diagnoses among the remaining 105 patients (73%) were functional neurological disorder (n = 20), neurodegenerative disorder (n = 18), subjective cognitive complaints (n = 14), chronic pain syndrome (n = 12), primary psychiatric (n = 11), sleep disorder (n = 10), genetic/developmental (n = 8), non-autoimmune seizure disorders (n = 2) and other (n = 10). More patients with autoimmune CNS disorders presented with sub-acute symptom onset (P < 0.001), seizures (P = 0.008), stroke-like episodes (P = 0.007), aphasia (P = 0.04) and ataxia (P = 0.02), and had a prior autoimmune history (P = 0.04). Abnormal brain MRI (P = 0.003), abnormal EEG (P = 0.007) and CSF inflammatory findings (P = 0.002) were also more frequent in the autoimmune CNS patients. Patients with an alternative diagnosis had more depressive symptoms (P = 0.008), anxiety (P = 0.003) and chronic pain (P = 0.002). Thyoperoxidase antibody titre was not different between the groups (median, 312.7 versus 259.4 IU/ml; P = 0.44; normal range, <9 IU/ml). None of the non-autoimmune group and all but three of the CNS autoimmune group (two with insidious dementia presentation, one with seizures only) fulfilled the autoimmune encephalopathy criteria proposed by Graus et al. (A clinical approach to diagnosis of autoimmune encephalitis. Lancet Neurol 2016; 15: 391–404.) (sensitivity, 92%; specificity, 100%). Among patients who received an immunotherapy trial at our institution and had objective post-treatment evaluations, the 16 responders with autoimmune CNS disorders more frequently had inflammatory CSF, compared to 12 non-responders, all eventually given an alternative diagnosis (P = 0.02). In total, 73% of the patients referred with suspected Hashimoto encephalopathy had an alternative non-immune-mediated diagnosis, and more than half had no evidence of a primary neurological disorder. Thyroid antibody prevalence is high in the general population, and does not support a diagnosis of autoimmune encephalopathy in the absence of objective neurological and CNS-specific immunological abnormalities. Thyroid antibody testing is of little value in the contemporary evaluation and diagnosis of autoimmune encephalopathies.
Inhibition of P-Selectin Rescues the Phenotype of a Novel Genetic Animal Model for Idiopathic Pulmonary Fibrosis
Gobbo, Francesca , Verachi, Paola , Mead‐Harvey, Carolyn , Bacci, Barbara , Zingariello, Maria , Peli, Angelo , Dueck, Amylou C. , Sarli, Giuseppe , Migliaccio, Anna Ritá

Blood | November 4, 2020 | Volume: 136 | Issue: Supplement 1 | Pages: 29-29

10.1182/blood-2020-133898 Get It

Idiopathic pulmonary fibrosis (IPF) is a chronic inflammatory disorder which leads to progressive fibrosis and lung failure within 2-5 years1,2. Approximately 30% of IPF patients develop Chronic Kidney Disease (CKD) with renal dysfunction and fibrosis3. The treatment options for IPF are still limited and the disease is an unmet clinical need. The only animal model for IPF is represented by mice treated with bleomycin, a compound used for chemotherapy which has lung toxicity as its major adverse effect, that develop progressive fibrosis. Recent data indicate that bleomycin triggers lung fibrosis by increasing the release of the pro-inflammatory cytokine TGF-β by the resident megakaryocytes (MK)4. Using these observations as foundation, we investigated whetherGata1lowmice, a model for myelofibrosis induced by a TGF-β/P-selectin (P-sel) circuitry established by the abnormal MK5, includes fibrosis in lungs and kidney and whether these traits are rescued by genetic ablation (P-selnullmutation) and antibody neutralization (by RB40.34) of P-sel. MK were observed in lungs from wild-type (WT, n=9),Gata1low(n=22),P-selnull(n=4) andP-selnullGata1low(n=10) littermates. In frequency, MK were significantly lower inGata1low andP-selnullGata1lowthan in WT andP-selnulllittermates (median=1.3-1.5 vs 3-3.7/0.144mm2, p<0.003) and mostly immature. In addition, lungs and kidney fromGata1low mice, but not those from the other experimental groups, contained great levels of TGF- β (Fig.1). Interstitial pneumonia was observed in lungs from WT (n=12, age=3-13 months, males=8, females=4),P-selnull(n=9, age=3-16 months, males=4, females=5),Gata1low(n=29, age=2-24 months, males=16, females=13) andGata1lowP-selnull(n=18, age=3-16 months, males=7, females=11) mice while nephritis was observed only in kidneys fromGata1low mice. Controlling for the effects of sex, there are statistically significant differences in severity of inflammation in kidney (p=0.001) but not in lungs (p=0.86) betweenGata1low and WT mice. These results indicate that lung inflammation is a baseline condition of the CD1 background used for the study while kidney inflammation is a trait exclusive toGata1low mutants independently from their gender. Great levels of fibrosis were observed in lungs and kidney fromGata1low mice but not in those from WT littermates. There are statistically significant differences in lung (p=0.01) and kidney (p<0.001) fibrosis between the two groups; these differences remained after adjusting for age or sex. By contrast, there is insufficient evidence to conclude there exists a relationship between age and fibrosis grade in the other experimental groups. Age was found to be a statistically significant effect modifier on the relationship between genotype and fibrosis in lung (p=0.024) and kidney (0.004). In addition, although there is insufficient evidence for a relationship between sex and fibrosis grade in lung (p=0.62), there is a statistically significant effect of gender in kidney fibrosis inGata1low mice (p<0.001). These results indicate that fibrosis in lung and nephritis and fibrosis in kidney are novel traits ofGata1low mice developed independently from the underlying state of inflammation and which are rescued by ablation ofP-sel. To further clarify the role of P-sel in lung and kidney fibrosis, 14Gata1lowmice (7 males, 7 females) were treated with either vehicle (8 mice) or RB40.34 (30 μg/mouse/day per 3 days/week by tail vein injection as described6). Mice were sacrificed on day 5 (males) and 12 (females) and histopathology, inflammation, fibrosis and TGF-β content in lungs and kidney analyzed. Treatment with RB40.34 restored the morphology and reduced inflammation, fibrosis and TGF-β content in the lungs and in kidney with respect to vehicle (Fig.1). In conclusion, Gata1low mice are a novel animal model for IPF with CKD. The phenotype is associated with highTGF-βcontent in lung and kidney and is rescued by targeting P-sel, suggesting that treatment with antibodies against P-sel may cure IPF in man. REF: 1Richeldi et al.Lancet389: 1941, 2017; 2Hutchinson et al.EurRespirJ46, 795, 2015; 3Ikezoeet al.Respiration94: 346, 2017; 4Zhouet al.CellDeathDis10:648, 2019: 5Spangrudeet al.StemCells34: 67, 2016; 6Emburyet al.Blood104: 3378, 2004. Disclosures Migliaccio: Novartis:Research Funding.
Symptom Burden and Quality of Life in High-Risk Essential Thrombocythemia and Polycythemia Vera Patients Receiving Hydroxyurea or Pegylated Interferon Alfa-2a: Results of Myeloproliferative Neoplasms Research Consortium (MPN-RC) 111 and 112 Trials
Mazza, Gina L. , Mead‐Harvey, Carolyn , Yacoub, Abdulraheem , Silver, Richard T. , Barbui, Tiziano , Mazza, Gina L , Mascarenhas, John , Hoffman, Ronald , Kosiorek, Heidi , Prchal, Josef T. , Dueck, Amylou C. , Mesa, Ruben A.

Blood | November 4, 2020 | Volume: 136 | Issue: Supplement 1 | Pages: 19-21

10.1182/blood-2020-142817 Get It

Introduction Essential thrombocythemia (ET) and polycythemia vera (PV) patients suffer from various symptoms that worsen quality of life (QOL), yet serial data on symptom changes resulting from therapy are sparse in the literature. Patient questionnaires from 2 large multicenter trials (MPN-RC 111, 112) were used to assess change in symptom burden and QOL over 12 months and impact of baseline symptom burden on subsequent change in ET / PV patients on hydroxyurea (HU) or pegylated interferon alfa-2a (PEG). Methods Trials MPN-RC 111 was a single-arm, open-label, phase II trial evaluating response to PEG in high-risk ET / PV patients with HU resistance/intolerance or splanchnic vein thrombosis (SVT; NCT01259817). MPN-RC 112 was a randomized, open-label, phase III trial comparing response to PEG versus HU in cytoreductive therapy naïve high-risk ET / PV patients diagnosed < 5 years ago (NCT01258856). Measures Patients reported disease-related symptoms via the validated Myeloproliferative Neoplasms Symptom Assessment Form (MPN-SAF), QOL via the European Organisation for the Research and Treatment of Cancer Core QOL Questionnaire (EORTC QLQ-C30), and (if applicable) PEG-related symptoms (flu-like symptoms, injection site irritation, blurry vision, vision change, flushing) at baseline, 3, 6, 9, and 12 months. Analysis Mixed models assessed mean changes from baseline in the MPN-SAF Total Symptom Score (TSS), MPN-SAF items, QOL, and PEG-related symptoms in MPN-RC 111, 112 PEG, and 112 HU patients. Mixed models also assessed the impact of baseline symptom burden (high [TSS ≥ 20] versus low) on subsequent change in PEG (MPN-RC 111 and 112) and HU patients. Results Patients Of the 135 enrolled MPN-RC 111 patients, 20 with SVT and 1 with no questionnaires were excluded. Of the remaining 114, 64 (56%) / 50 (44%) had ET / PV. Patients were 51% / 48% female. Median age was 65 / 64 years, and median time since diagnosis was 38 / 55 months. 31% / 22% had prior thrombosis, and 19% / 56% had splenomegaly. Of the 168 enrolled MPN-RC 112 patients (82 PEG, 86 HU), 2 with no questionnaires were excluded. Of the remaining 166, 79 (48%) / 87 (52%) had ET / PV. Patients were 50% / 33% female. Median age was 60 / 62 years, and median time since diagnosis was 3 / 3 months. 25% / 29% had prior thrombosis, and 11% / 37% had splenomegaly. Symptoms Questionnaire completion rates ranged from 90 - 99%, 87 - 100%, and 75 - 96% for on-treatment MPN-RC 111, 112 PEG, and 112 HU patients. At baseline, TSS (0 [absent] - 100 [worst imaginable]) and QOL (0 [very poor] - 100 [excellent]) means (SDs) were 19.5 (18.4) and 71.6 (20.1) for MPN-RC 111, 17.0 (13.6) and 67.9 (24.3) for MPN-RC 112 PEG, and 14.6 (11.4) and 73.8 (18.8) for MPN-RC 112 HU patients. On average, MPN-RC 111 patients had significant improvement of TSS, fatigue, abdominal pain, abdominal discomfort, dizziness, numbness, night sweats, and fever; MPN-RC 112 PEG patients had significant worsening of fever; and MPN-RC 112 HU patients had significant worsening of inactivity (no mean changes indicating improvement were observed). PEG patients had significant worsening of PEG-related symptoms. The greatest improvements occurred in the 46 (40%), 27 (33%), and 23 (28%) MPN-RC 111, 112 PEG, and 112 HU patients with high baseline symptom burden. On average, PEG patients with high baseline symptom burden had significant improvement of TSS, fatigue, early satiety, abdominal pain, abdominal discomfort, inactivity, headache, concentration, dizziness, numbness, insomnia, cough, night sweats, itching, bone pain, fever, weight loss, and QOL, while those with low baseline symptom burden had significant worsening of TSS, early satiety, headache, itching, and bone pain. On average, HU patients with high baseline symptom burden had significant improvement of TSS, early satiety, abdominal discomfort, headache, dizziness, numbness, insomnia, itching, and weight loss, while those with low baseline symptom burden had significant worsening of TSS, early satiety, abdominal discomfort, inactivity, concentration, and sexual desire/function (Figures 1 and 2). Conclusions Although no statistical comparisons were made across trials, overall improvements were seen in MPN-RC 111 but not 112. Patients with high baseline symptom burden experienced the greatest improvements in symptom burden and QOL during treatment with PEG or HU, which may explain the improvements seen in the more advanced patients in MPN-RC 111 compared to 112. Disclosures Mascarenhas: Celgene, Prelude, Galecto, Promedior, Geron, Constellation, and Incyte: Consultancy; Incyte, Kartos, Roche, Promedior, Merck, Merus, Arog, CTI Biopharma, Janssen, and PharmaEssentia: Other: Research funding (institution). Yacoub:Dynavax: Current equity holder in publicly-traded company; Ardelyx: Current equity holder in publicly-traded company; Cara Therapeutics: Current equity holder in publicly-traded company; Hylapharm: Current equity holder in private company; Incyte: Speakers Bureau; Agios: Honoraria, Speakers Bureau; Novartis: Speakers Bureau; Roche: Other: Support of parent study and funding of editorial support. Hoffman:Protagonist: Consultancy; Forbius: Consultancy; Novartis: Membership on an entity's Board of Directors or advisory committees; Abbvie: Membership on an entity's Board of Directors or advisory committees; Dompe: Research Funding. Silver:PharmaEssentia: Speakers Bureau. Mesa:Bristol Myers Squibb: Research Funding; Incyte: Research Funding; AbbVie: Research Funding; Samus Therapeutics: Research Funding; Genentech: Research Funding; CTI BioPharma: Research Funding; Promedior: Research Funding; Sierra Oncology: Consultancy; LaJolla Pharmaceutical Company: Consultancy; Novartis: Consultancy.
Analysis of Free-Text Responses in an International Myeloproliferative Neoplasms Patient Survey to Assess Impact of the COVID-19 Pandemic on Clinical Care
Langlais, Blake, Mead‐Harvey, Carolyn , Mazza, Gina L. , Palmer, Jeanne , Mazza, Gina L , Kosiorek, Heidi , Mesa, Ruben A. , Dueck, Amylou C.

Blood | November 4, 2020 | Volume: 136 | Issue: Supplement 1 | Pages: 11-12

10.1182/blood-2020-143172 Get It

Background The COVID-19 pandemic continues to challenge effective treatment delivery to hematologically-compromised patients, including those with myeloproliferative neoplasms (MPNs). MPNs are characterized by clonal proliferation of hematopoietic cell lines in bone marrow. As such, increasing reports of COVID-19 related thrombotic events highlight how MPN patients are at an increased risk in navigating potential complications during this pandemic. Mitigation strategies to lesson MPN patient exposure to COVID-19 are vital. Though, such efforts come at an inherent cost to effective healthcare delivery. Restriction of regular in-clinic treatments and reported shortages of MPN pharmacotherapies present these patients with diminishing continued care. To understand how MPN patient care has been impacted by COVID-19, an internet-based questionnaire was deployed surveying a variety of disease and pandemic related items (reported elsewhere; Palmer J et al, ASH 2020 submitted). A single free-text response item instructed respondents to: "Please tell us anything else (bad or good) about how the COVID-19 outbreak has impacted your MPN care." This qualitative analysis evaluated first-hand comments directly from patients in order to form a richer understanding of how those with MPNs have been managing disease-related care amidst this pandemic. Methods This COVID-19 survey was hosted via Mayo Clinic's secured REDCap system for online surveys and posted on MPN organizational partner websites. Surveys were completely anonymous. The free-text responses describing impacts to MPN care were each independently reviewed by 2 individuals for overall sentiment (positive, negative, both, or neutral [no impact]) and categorized for themes. The 2 reviewers were assessed for agreement. Conflicting reviews were evaluated then adjudicated by an algorithm for cases meeting selected conditions or by lead author review for all remaining cases. Descriptive statistics are reported. Results Of the 1217 consenting adult patients participating in the overall COVID-19 study, 824 provided free-text responses. Of these, respondent MPN diagnoses included, essential thrombocythemia (n=324, 39%), polycythemia vera (n=251, 30%), myelofibrosis (n=153, 19%), and other/undisclosed (96, 12%); 69% (n=567) were female; median age was 63 (range 21-93); 38% (n=313) were from the US, 38% (n=313) UK, and 24% (n=198) other/unknown. There was 89% (n=734) sentiment agreement between reviewers. Free-text responses about the impact of COVID-19 on MPN care were 49% (n=400) negative, 21% (n=177) positive, 8% (n=65) both positive and negative, and 22% (n=182) neutral/no impact. Table 1 shows a selection of MPN patient free-text responses reflecting common negative and positive sentiment themes. Negative impact (n=400): The most common negative impact involved delays or cancellations of visits or perceived inaccessibility to regular providers (n=261, 65%). Primarily this sentiment was driven by lack of clinic availability and restrictions at treatment centers or by providers. However, some respondents reported delaying or canceling visits themselves due to fear of COVID-19 exposure. Perceived health consequences from this delay were also expressed. There were 129 (32%) respondents with concern regarding changes or access to medications, including explicit drug supply shortages. Some patients resorted to self-adjusting medications and reusing single-use supplies. General anxiety, stress, and isolation were also reported (n=98, 25%). Positive impact (n=177): Availability of telemedicine comprised the majority of positive impacts of the pandemic (n=95, 54%), with many noting the reduced travel time to visits. Routine local testing coupled with follow-up telemedicine was favorable. Despite general positivity towards telemedicine, some reported preferences for in-person visits; commenting that telemedicine was impersonal, difficult to schedule or receive virtual communication, and expressed concern for lack of spleen examinations during virtual visits. Conclusion Positive and negative aspects were reported including MPN-specific issues. Healthcare systems should use such data to emerge from the COVID-19 pandemic and retain the positive impacts such as telemedicine, while developing education materials and other resources to address the reported negative impacts where possible. Disclosures Mesa: CTI BioPharma: Research Funding; Promedior: Research Funding; Novartis: Consultancy; Sierra Oncology: Consultancy; Samus Therapeutics: Research Funding; Genentech: Research Funding; AbbVie: Research Funding; Incyte: Research Funding; LaJolla Pharmaceutical Company: Consultancy; Bristol Myers Squibb: Research Funding.
Racial/ethnic differences in patients with anemia and folate deficiency
González-Vélez, Miguel , Mead‐Harvey, Carolyn , Kusne, Yael , Rivera, Candido E., Bojanini, Leyla , Northfelt, Donald W. , Padrnos, Leslie , Kusne, Yael N, Rivera, Candido, Padrnos, Leslie J, Kosiorek, Heidi

International Journal of Laboratory Hematology | April 16, 2020 | Volume: 42 | Issue: 4 | Pages: 403-410

10.1111/ijlh.13205 Get It

AbstractObjectiveTo determine the presence of racial/ethnic differences in patients with anemia and serum folate deficiency.MethodsWe performed a retrospective analysis of data from patient samples collected from January 2010 to October 2018. Reference laboratory ranges were determined by Mayo Clinic Reference Laboratories. Race and ethnicity were classified according to National Institutes of Health categories.ResultsThe analysis comprised 197 974 samples. Hemoglobin, hematocrit, and SF results were available for 173 337, 173 056, and 129 760 samples, respectively. Of the samples, 46 505 (26.8%) showed anemia, with a higher prevalence among American Indian/Alaskan Natives (AI/AN) 42.9% and African Americans (AA) 47.2% (P < .001). SF deficiency was present in 897 (0.7%), with a higher prevalence among AI/AN (9, [1.4%]) and AA (78, [1.2%]) and a lower prevalence in non‐Hispanic whites (NHW) (758, [0.7%]), Hispanics (40, [0.6%]), and Asians (8, [0.3%]). In multivariable analysis, the prevalence of anemia was higher in all non‐NHW racial/ethnic groups: AA (OR, 3.67, [95%CI: 3.47‐3.88, P < .001]), AI/AN (OR, 3.25, [95%CI: 2.71‐3.90, P < .001]), Asians (OR, 1.62, [95%CI: 1.47‐1.77, P < .001]), and Hispanics (OR, 1.41, [95%CI: 1.32‐1.50, P < .001]). SF deficiency was more common in AA (OR, 1.48, [95%CI: 1.17‐1.88, P.001]) and less common in Asians (OR, 0.35, [95%CI: 0.17‐0.70, P = .003]), compared with NHW.ConclusionsWe showed significant racial/ethnic differences in anemia and SF deficiency. Differences were observed especially among NHW, AA, and Asians. We believe that these differences may be explained by social determinants of health. More research is needed regarding the causes of these differences and their clinical implications at a population level.
Pressing Issues Among Trainees and Early Career Physicians in Headache Medicine: Survey Results From the American Headache Society New Investigator and Trainee Section and International Headache Academy
VanderPluym, Juliana H. , Mead‐Harvey, Carolyn , Starling, Amaal J. , VanderPluym, Juliana

Headache: The Journal of Head and Face Pain | February 7, 2020 | Volume: 60 | Issue: 4 | Pages: 745-751

10.1111/head.13764 Get It

Objective We surveyed the American Headache Society (AHS) New Investigators and Trainees Section (NITS), and International Headache Academy (IHA) attendees to better understand what they perceive as the most pressing issues for themselves as new investigators and trainees in the field of headache medicine. Background The NITS and IHA are intended as platforms for mentorship, leadership training, and professional development in the field of headache medicine. Identifying and addressing pressing issues among new investigators and trainees based on their perceived needs is critical to encouraging their development and success as headache medicine clinicians and researchers. Methods Paper surveys were administered at the NITS meeting at the November 2018 Scottsdale Headache Symposium and the January 2019 IHA. Additionally an online version was sent to the NIT listserv in November of 2018. The survey queried demographic information (gender, race, age, profession, training status, and years in practice) and asked participants to identify their top 3 most pressing issues/questions among a list of options. Results Fifty‐three responses were submitted (53/255; total response rate 20.7%). Among the surveys, 18 in‐person responses were from the NITS meeting (18/20; response rate 90.0%), 23 in‐person responses were from the IHA (23/45; response rate 51.1%), and 12 responses were from the online survey (12/190; response rate 6.3%). No duplicate responses were submitted based on comparison of demographics. One respondent identified as a researcher exclusively and was excluded from further analyses; the rest identified as clinicians at various levels of medical training. Fifteen respondents were not members of the NITS (28.8%); the most common reason for nonmembership was lack of awareness of the section (92.8%). Overall the most pressing issues/questions included (% of respondents who ranked issue/question among top 3): Career planning (51.9%), Logistics of running a headache clinic (40.4%), and Opportunities for involvement (38.5%). Most pressing issues/questions differed depending on level of training. Working with industry was the most pressing issue/question identified by early career physicians (55.0%). Career planning was the most pressing issue/question among fellows (72.2%) and residents (64.3%). Conclusion Many of the most pressing issues identified by respondents are topics that are not formally addressed in medical and research training.
Racial Differences in Nutritional Anemias: Analysis of Folate, Vitamin B12, and Iron Deficiencies
Vélez, Miguel González , Mead‐Harvey, Carolyn , Kusne, Yael , Padrnos, Leslie , Kosiorek, Heidi

Blood | November 14, 2019 | Volume: 134 | Issue: Supplement_1 | Pages: 3387-3387

10.1182/blood-2019-123791 Get It

Background: Serum folate (SF), vitamin B12 (B12), and iron deficiencies (def) are common causes of nutritional anemias. These deficiencies are usually multifactorial, with nutritional and non-nutritional factors playing a role. SF, B12, and iron levels are usually ordered in the setting of anemia, and malnutrition with or without neurologic symptoms. Since folic acid fortification, the prevalence of SF def in the United States (US) is <1% in the general population. B12 def and iron def range between 6-12%, and 1-11% respectively depending on the population studied. The prevalence of nutritional anemias secondary to SF, B12, and/or iron def by racial groups in the US is poorly studied, and most data available focuses on non-Hispanic whites (NHW). We aimed to determine the prevalence of anemia secondary to nutritional deficiencies by racial groups in the US. Methods: We performed a retrospective analysis of patients with SF, B12 and iron levels at Mayo Clinic Arizona between 01/2010 and 10/2018. Race was classified according to the NIH criteria. Normal laboratory values were determined according to our lab reference and the US National Health and Nutrition Examination Survey (NHANES) III. SF levels (mcg/Lt) were defined as deficient <4, normal ≥4.0, and excess ≥20. B12 levels (ng/L) as deficient <150, borderline 150-400, normal >400-900, and excess ≥900. Iron def was determined by ferritin levels (mcg/L) as low <24, normal 24-336, elevated ≥336 for men, low <11, normal 11-307, elevated ≥307 for women. Demographics and clinical variables were compared between groups by chi-square test for frequency data or Kruskal Wallis rank-sum test for continuous variables. Multivariable logistic regression was used for a sample-level analysis adjusting for age and gender and using NHW as a reference group. Results: A total of 79,926 SF, 107,731 B12, and 39,827 ferritin samples from 67,683 patients were analyzed. Demographics and sample analysis are presented in Table 1. In the sample-level analysis, 23,008 (25%) had anemia with higher prevalence in the American Indian/Alaskan Native (AI/AN) 49% and African Americans (AA) 43% (p<0.001). The prevalence of SF def was 446/79,926 (0.6%), B12 def 1,548/107,731 (1.4%), and iron def 5,212/39,827 (13.1%). 23 had concomitant SF and B12 deficiency, 25 SF and iron def, and 144 B12 and iron def. The SF def prevalence by racial groups was: AI/AN 11 (1.9%), AA 19 (1.1%), NHW 378 (0.6%), Hispanic 28 (0.5%), Asian 4 (0.2%). The B12 def prevalence by racial groups was: Asian 89 (3.4%), NHW 1,274 (1.4%), Hispanic 87 (1.3%), AA 30 (1.3%), AI/AN 10 (1.3%). Iron def prevalence by racial groups: AI/AN 71 (20.5%), Asian 198 (17.6%), AA 180 (16.9%), Hispanic 432 (15.6%), NHW 4,161 (12.4%). In the multivariate sample-level analysis, the presence of anemia was higher in the AI/AN (OR: 4.51, 95%CI: 3.70-5.49, p<0.0001), AA (OR 3.34, 95%CI: 2.99-3.74, p<0.0001), Asian (OR 1.52, 95%CI: 1.35-1.73, p<0.0001) and Hispanic racial group (OR 1.41, 95%CI: 1.30-1.52, p<0.0001). SF def was more common in the AI/AN (OR: 2.94, 95%CI: 1.60-5.39, p<0.001) and AA (OR 1.71, 95%CI: 1.08-1.53, p=0.02). B12 def was more common in the Asian racial group (OR: 2.535, 95%CI: 20.03-3.16, p<0.0001). Iron def was more common in the AI/AN (OR: 1.62, 95%CI: 1.21-2.17, p<0.001), Asian (OR 1.31, 95%CI: 1.0-1.57, p=0.003), and AA racial group (OR 1.26, 95%CI: 1.05-1.52, p=0.001). Conclusions: In our cohort, we show that despite the low prevalence of nutritional anemias in the US, racial disparities exist. Major differences were observed in the prevalence of anemia, SF def and iron def especially among AI/AN and AA. These differences may be linked to medical causes, nutritional practices and other social determinants of health. More research regarding the causes of these disparities and its clinical implications on a population level are needed. Targeted strategies to improve folate, B12 and iron intake in at higher risk populations could decrease adverse outcomes and decrease healthcare disparities caused by nutritional anemias. T able 1. Sample-level comparison by race Disclosures No relevant conflicts of interest to declare.