Table 1 Data source descriptions.

From: Analysis of treatment pattern of anti-dementia medications in newly diagnosed Alzheimer’s dementia using OMOP CDM

Abbreviation

Hospital

Description

Patients, millions

KWMC

Kangwon University Medcal Center

Electronic health record from a Korean general hospital with 608 patients beds with monthly updated common data model database

0.5

AJOUMC

Ajou University Medical Center

Electronic health record from a Korean tertiary hospital with 1,096 patients beds daily updated common data model database

2.7

WKUH

Wonkwang University Hospital

Electronic health record from a Korean tertiary hospital with 798 patients beds with weekly updated common data model database

0.8

KDH

Kangdong Sacred Heart Hospital

Electronic health record from a Korean general hospital with 618 patients beds

1.1

KHNMC

Kyung Hee University Hospital At Gangdong

Electronic health record from a Korean general hospital with 654 patients beds monthly updated common data model database

0.7