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Abstract Details

Epidemiology of Seropositive Neuromyelitis Optica Spectrum Disorder in a Large US Population
Autoimmune Neurology
P10 - Poster Session 10 (11:45 AM-12:45 PM)
14-013
To define the epidemiology and demographics of seropositive neuromyelitis optica spectrum disorder (NMOSD) in a large health system in the United States.
Epidemiological studies of NMOSD have been limited by several factors. Challenges include disease rarity and identification, a heterogenous composition of individuals diagnosed with seronegative disease, and inconsistent capture of the lab-based biomarker, aquaporin-4 antibodies, in large datasets. Health Data Compass (HDC), a health data warehouse at a large academic healthcare system, combines health system data with claims from the Colorado All Payer Claims Database (2011-present). Notably, HDC curates all forms of aquaporin-4 testing since database inception.
This is a retrospective cohort study comprising all adult patients that had any contact with a single academic healthcare system from 1/1/2011 to 12/31/2020. Through HDC, we extracted salient demographic information for the constituent population including our cohort of NMOSD patients. All database lab entries for aquaporin-4 were reviewed with HDC analysts to ensure complete capture of seropositive patients. Prevalence was calculated as of 12/31/2020. Complete validation of diagnosis will be confirmed by chart review using the IPND 2015 criteria. Statistical analysis was completed using SAS version 9.4.
Our population consisted of 2,474,871 individuals, contributing 11,079,341 person-years of observation for forthcoming incidence calculations. 80 seropositive NMOSD patients were identified. Female patients comprised 86.2% (6.3 F:M) of patients. Mean age was 46.9 years at first positive aquaporin-4 test. Of NMOSD patients, 22.5% (N = 18) identified as Hispanic (identified separately from race), 17.5% as Black (N = 14), 8.8% (N = 7) as Asian, 61.3% (N = 49) as White, and 12.5% (N = 10) as Other race. Prevalence was 3.23 per 100,000 (95% CI 2.52 - 3.94).
Prevalence is consistent with existing studies. We confirm a high female predominance in NMOSD. Epidemiological data will be slightly adjusted as diagnostic confirmation is completed. 
Authors/Disclosures
Carlos Eduardo Vervloet Sollero, MD (University of Rochester)
PRESENTER 		Dr. Vervloet Sollero has nothing to disclose.
Jeffrey L. Bennett, MD, PhD, FAAN (University of Colorado School of Medicine) Dr. Bennett has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Amgen. Dr. Bennett has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Alexion. Dr. Bennett has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Genentech. Dr. Bennett has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Roche. Dr. Bennett has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Mitsubishi Tanabe. Dr. Bennett has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Novartis. Dr. Bennett has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Immpact Bio. Dr. Bennett has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Chugai. Dr. Bennett has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Beigene. Dr. Bennett has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Imcyse. Dr. Bennett has received personal compensation in the range of $5,000-$9,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Roche. Dr. Bennett has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for MIAC. Dr. Bennett has received personal compensation in the range of $5,000-$9,999 for serving on a Scientific Advisory or Data Safety Monitoring board for CorEvitas. Dr. Bennett has received personal compensation in the range of $50,000-$99,999 for serving on a Speakers Bureau for Alexion. Dr. Bennett has received personal compensation in the range of $500-$4,999 for serving on a Speakers Bureau for Vindico. Dr. Bennett has received personal compensation in the range of $500-$4,999 for serving on a Speakers Bureau for Touch IME. Dr. Bennett has received personal compensation in the range of $500-$4,999 for serving on a Speakers Bureau for Efficient LLC. Dr. Bennett has received personal compensation in the range of $10,000-$49,999 for serving as an Expert Witness for Pavich. Dr. Bennett has received personal compensation in the range of $500-$4,999 for serving as an Expert Witness for Marie Bush. Dr. Bennett has received personal compensation in the range of $10,000-$49,999 for serving as an Expert Witness for Marks Gray. Dr. Bennett has received personal compensation in the range of $500-$4,999 for serving as an Expert Witness for Knight, Nicastro, MacKay. The institution of Dr. Bennett has received research support from Alexion. The institution of Dr. Bennett has received research support from Genentech. Dr. Bennett has received intellectual property interests from a discovery or technology relating to health care. Dr. Bennett has received publishing royalties from a publication relating to health care.
Kavita Nair, PhD, FAAN (University of Colorado) Dr. Nair has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Bristol Meyers Squibb. Dr. Nair has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Novartis. Dr. Nair has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for PhRMA Foundation. Dr. Nair has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Genentech. Dr. Nair has received personal compensation in the range of $500-$4,999 for serving as a Consultant for TG Therapeutics. Dr. Nair has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for MJH Lifesciences. Dr. Nair has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Sanofi. Dr. Nair has received personal compensation in the range of $500-$4,999 for serving as a Consultant for EMD Serono. Dr. Nair has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Amgen. Dr. Nair has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Anylam . Dr. Nair has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Applied Patient Experience. Dr. Nair has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Esai. Dr. Nair has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for MHJ Life Sciences. Dr. Nair has received personal compensation in the range of $10,000-$49,999 for serving on a Speakers Bureau for Sanofi-Genzyme. Dr. Nair has received personal compensation in the range of $500-$4,999 for serving on a Speakers Bureau for Amgen. Dr. Nair has received personal compensation in the range of $500-$4,999 for serving as an officer or member of the Board of Directors for ICER. The institution of Dr. Nair has received research support from Genentech. The institution of Dr. Nair has received research support from Novartis. The institution of Dr. Nair has received research support from Genentech. The institution of Dr. Nair has received research support from Phrma Foundation. The institution of Dr. Nair has received research support from Bristol Meyers Squibb. The institution of Dr. Nair has received research support from Novartis. The institution of Dr. Nair has received research support from NINDS. The institution of Dr. Nair has received research support from Sanofi Genzyme. The institution of Dr. Nair has received research support from Kyverna Therapeutcis. Dr. Nair has a non-compensated relationship as a Board Member with Center for Improving Value in Healthcare that is relevant to AAN interests or activities.
Stefan Sillau Stefan Sillau has nothing to disclose.
Amanda L. Piquet, MD, FAAN (University of Colorado) The institution of Dr. Piquet has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Genentech/Roche. The institution of Dr. Piquet has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Alexion. The institution of Dr. Piquet has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Kyverna . The institution of Dr. Piquet has received personal compensation in the range of $5,000-$9,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Genentech/Roche. The institution of Dr. Piquet has received personal compensation in the range of $5,000-$9,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Kyverna. The institution of Dr. Piquet has received personal compensation in the range of $10,000-$49,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Alexion. Dr. Piquet has received personal compensation in the range of $10,000-$49,999 for serving as an Expert Witness for Sands Anderson PC. Dr. Piquet has received personal compensation in the range of $5,000-$9,999 for serving as an Expert Witness for Joe Jones Law Firm. Dr. Piquet has received personal compensation in the range of $500-$4,999 for serving as an Expert Witness for Cortez & Associates. Dr. Piquet has received personal compensation in the range of $500-$4,999 for serving as an Expert Witness for Falk Waas. The institution of Dr. Piquet has received research support from Rocky Mountain MS Center. The institution of Dr. Piquet has received research support from Roche/Genentech. The institution of Dr. Piquet has received research support from NYU. The institution of Dr. Piquet has received research support from Anokion. The institution of Dr. Piquet has received research support from UCB . The institution of Dr. Piquet has received research support from Foundation for Sarcoidosis. The institution of Dr. Piquet has received research support from Kyverna . Dr. Piquet has received publishing royalties from a publication relating to health care. Dr. Piquet has received publishing royalties from a publication relating to health care. Dr. Piquet has received personal compensation in the range of $10,000-$49,999 for serving as a Litigative Consultant with US-Dept HHS/DICP. Dr. Piquet has a non-compensated relationship as a Medical Advisory Board Member with Autoimmune Encephalitis Alliance (AEA) that is relevant to AAN interests or activities. Dr. Piquet has a non-compensated relationship as a Medical Advisory Board Member with Stiff Person Syndrome Research Foundation (SPSRF) that is relevant to AAN interests or activities.
Kelli Money, MD, PhD Dr. Money has nothing to disclose.
Barrie L. Zerwic, MD (University of Colorado, Anschutz Medical Campus) Dr. Schmitt has nothing to disclose.
Aaron M. Carlson, MD (University of Colorado, School of Medicine, Department of Neurology) Dr. Carlson has received research support from Horizon Therapeutics (Amgen).