Scientific Computing and Data / Mount Sinai Data Warehouse / Data Contents
MSDW Data Contents
The Mount Sinai Data Warehouse (MSDW) collects clinical and operational data for use in clinical and translational research, as well as quality improvement initiatives.
The MSDW provides researchers access to data on patients in the Mount Sinai Health System Epic EHR:
- Over 11 million patient records
- Over 87 million patient encounters
Understanding Electronic Health Record (EHR) Data
Principal Data Architect Timothy Quinn, PhD, has developed informative presentations on OMOP Vocabulary Tables and Electronic Health Record (EHR) Data in MSDW:
- November 29, 2022 – “Terminology Mappings for MSDW OMOP” PowerPoint Slide Deck
- November 29, 2022 – “Data Catalog for OMOP” PowerPoint Slide Deck
- November 2, 2022 – “OMOP Vocabulary Tables Overview” PowerPoint Slide Deck
- June 16, 2022 – “Understanding EHR Data in MSDW” PowerPoint Slide Deck
- June 16, 2022 – “Understanding EHR Data in MSDW” Presentation Recording
Mount Sinai’s Epic electronic health record (EHR) system constitutes the primary data source for the Mount Sinai Data Warehouse. Data are also loaded from other ancillary systems.
MSDW Data Model
MSDW ecosystem uses the OHDSI collaborative’s OMOP Common Data Model to facilitate optimal data sharing and interoperability both internally (at Mount Sinai) and externally with research partners. The clinical data are extracted from Mount Sinai’s Epic Caboodle database and other ancillary systems, transformed to the OMOP Common Data Model (CDM) format, and loaded to the MSDW database. These data are updated daily.
The MSDW is situated on the Minerva High Performance Computing (HPC) cluster alongside other research data sets.
MSDW Record Counts
Last updated May 12, 2023
| OMOP Table | Record Type | Distinct Patients | Record Count |
| person | Patient Demographics | 11,359,705 | 11,359,705 |
| death | Patient Date of Death | 45,954 | 45,957 |
| visit_occurrence | Mobile Unit Encounter | 68,743 | 111,327 |
| visit_occurrence | Inpatient Hospitalization from ED Visit | 277,736 | 525,105 |
| visit_occurrence | Hospital Outpatient Visit | 894,661 | 2,472,103 |
| visit_occurrence | Urgent Care Visit | 190 | 296 |
| visit_occurrence | ED Visit | 1,131,817 | 2,732,247 |
| visit_occurrence | Inpatient Hospitalization | 609,075 | 919,758 |
| visit_occurrence | Outpatient Visit | 4,061,760 | 73,545,946 |
| visit_occurrence | Telehealth Visit | 660,939 | 2,706,066 |
| visit_occurrence | Chart Documentation Event | 5,434,697 | 87,301,399 |
| condition_occurrence | Hospital Problem | 847,633 | 3,136,818 |
| condition_occurrence | Encounter Diagnosis | 3,856,726 | 103,437,716 |
| condition_occurrence | Billing Diagnosis | 2,204,779 | 44,863,750 |
| condition_occurrence | Problem List | 2,258,485 | 11,899,865 |
| measurement | Vital Signs | 3,424,374 | 566,300,804 |
| measurement | Flowsheet Measurement | 1,631,208 | 181,917,868 |
| measurement | Lab Component Result | 3,848,811 | 954,973,027 |
| drug_exposure | Medication Order with Administration | 1,402,010 | 113,132,577 |
| drug_exposure | Outpatient Medication Order with Dispense | 28,819 | 312,286 |
| drug_exposure | Immunization Administration | 1,191,626 | 7,040,845 |
| drug_exposure | Immunization from Procedure Order | 730,975 | 3,242,607 |
| drug_exposure | Outpatient Medication Order | 2,438,809 | 40,933,585 |
| drug_exposure | Medication Order with Dispense | 914,408 | 15,155,885 |
| drug_exposure | Medication Order | 943,232 | 11,340,759 |
| drug_exposure | Immunization from Medication Order | 193,928 | 248,744 |
| procedure_occurrence | Procedure Inferred from Flowsheet | 19,530 | 227,434 |
| procedure_occurrence | General Procedure | 4,914,936 | 245,337,669 |
| procedure_occurrence | Surgical Procedure | 279,583 | 692,085 |
| observation | Past Medical History | 2,074,240 | 7,818,061 |
| observation | Patient Cohort Membership | 748,031 | 1,209,821 |
| observation | Patient Demographics | 11,659,195 | 102,946,477 |
| observation | Family History | 1,579,969 | 59,561,698 |
| observation | Surgical History Procedure | 1,483,828 | 3,287,367 |
| observation | Allergy | 3,440,910 | 4,121,860 |
| observation | Social History | 3,343,596 | 135,683,865 |
| observation | Flowsheet Observation | 2,269,628 | 94,567,642 |
| note | Clinical Note | 4,550,473 | 174,579,797 |
| note | Lab Component Result Note | 2,371,636 | 16,017,684 |
| provider | Provider | 1,299,450 | |
| provider_attribute_xtn | Physician specialty | 603,551 | |
| provider_attribute_xtn | Personnel specialty | 165,709 | |
| location | Provider Address | 1,299,542 | |
| location | Patient Address | 11,359,705 | |
| location | Care Site Address | 14,263 | |
| care_site | Service Area | 50 | |
| care_site | Department | 5,361 | |
| care_site | Room | 7,086 | |
| care_site | Care Area | 781 | |
| care_site | Location | 2,016 | |
| care_site | Place of Service | 6,784 | |
| care_site | Bed | 77,519 | |
| concept | EPIC SURGICAL PROCEDURE | 33,056 | |
| concept | EPIC DIAGNOSIS | 1,577,077 | |
| concept | EPIC VISIT TYPE | 9,061 | |
| concept | EPIC ALLERGEN | 39,464 | |
| concept | EPIC PROCEDURE | 175,233 | |
| concept | EPIC IMMUNIZATION | 430 | |
| concept | EPIC MEDICATION | 136,625 | |
| concept | EPIC FLOWSHEET MEASURE | 78,590 | |
| concept | EPIC LAB COMPONENT | 36,044 | |
| concept | EPIC FLOWSHEET TEMPLATE | 3,260 |