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Welcome to OHDSI
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85
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10147
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October 21, 2026
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We still need your feedback! Vote for best Contribution and Fill out the Evaluation form for the Global Symposium
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0
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9
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October 26, 2026
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Workgroup - Health Economics & Value Assessment (HEVA)
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16
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743
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October 26, 2026
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Fact_relationship.relationship_concept_id (table fact_relationship revisited in 2026)
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6
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75
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October 14, 2026
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MEASUREMENT vs OBSERVATION
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2
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65
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September 29, 2026
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Mapping birth delivery method
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1
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27
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September 28, 2026
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Register for the global symposium and tutorials- less than a month away
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0
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10
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September 26, 2026
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3 more days to nominate a 2026 Titan!
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0
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17
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September 19, 2026
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Will AI Help or Hurt OHDSI's Global Mission?
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0
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35
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September 18, 2026
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Reminder- only a few guestrooms left at the hyatt! book your hotel room for the global symposium today
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0
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29
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September 8, 2026
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Clinical Trials/Registry tutorial at OHDSI symposium
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0
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30
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September 3, 2026
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5 guestrooms left in the OHDSI Discounted Room block for the Global Symposium!
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0
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28
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September 3, 2026
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Nominate a community member for a 2026 Titan Award!
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0
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20
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August 29, 2026
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Nominate a community member for a Titan Award!
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0
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17
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August 25, 2026
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Less than 10 rooms available in the Hyatt Room block for symposium Book now
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0
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18
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August 17, 2026
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OHDSI Global Symposium- Register - Book a Hotel-Room - Join the Jam Session!
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0
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13
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July 16, 2026
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Open Real World Data roles
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0
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40
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May 28, 2026
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PEPTIDE_LOCAL: proposed OMOP vocabulary for 12 therapeutic peptides without NDC/RxNorm — request for community feedback
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3
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50
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May 26, 2026
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[Collaborators Wanted] NIH R21/R33 Partnership: Scaling OMOP in Ghana (Pilot Active at Narh-Bita Hospital)
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1
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60
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May 20, 2026
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Weekly OHDSI Digest - April 6, 2026
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0
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23
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April 6, 2026
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Register for the 2026 OHDSI Global Symposium, Oct. 20-22!
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0
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49
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March 26, 2026
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Steering WG 13feb2026 Cancelled
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0
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26
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February 13, 2026
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CohortDiagnostics Adding Additional Concept Codes Unexpectedly To Phenotype Definition?
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2
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263
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January 9, 2026
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Basis of cancer diagnosis (Observation or Condition)?
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9
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519
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November 17, 2025
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Phenotype submission - Guillian Barre Syndrome
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5
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793
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September 26, 2025
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How how to include HLA test into the CDM
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0
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170
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September 25, 2025
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GIS WG Agenda for 2025 Global Symposium
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0
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236
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September 24, 2025
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Search for existing phenotypes in ATLAS?
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0
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227
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September 19, 2025
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ATLAS Estimation: “specification :: negative control - invalid” error when adding negative controls
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0
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192
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September 17, 2025
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Incongruent conventions in OMOP Wiki - DISCHARGE_TO_CONCEPT_ID
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11
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1103
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August 29, 2025
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