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. 2022 Oct 6;24(10):e35464. doi: 10.2196/35464

Table 1.

Reference sets created and used by pharmacovigilance methodological studies.

Reference set Data source Drugs, n ADRsa Vocabulary



ADRs, n Drug-ADR pairs, n Positive cases, n Negative cases, n
RS-ADRb Laboratory test and event (symptom) 1344 4485 6,027,840 141,729 2330 ATCc, MedDRAd, WHO-ARTe, LOINCf, and ICDg
Harpaz et al [13], 2012 Event (symptom) 44 38 137 62 75 RxNorm, and MedDRA
Yoon et al [14], 2012 Laboratory test 10 51 510 h None
Liu et al [15], 2013 Laboratory test 9 42 378 None
LePendu et al [16], 2013 Event (symptom) 78 12 193 28 165 MedDRA
Alvarez et al [28], 2010 Event (symptom) 267 532 MedDRA
Hochberg et al [29], 2009 Event (symptom) 35 6207 MedDRA
Ryan et al [30], 2012 (OMOPi version 1) Event (symptom) 10 9 90 9 44 None
Ryan et al [18], 2013 (OMOP version 2) Event (symptom) 191 4 398 165 234 None
Coloma et al [10], 2013 (EU-ADR) Event (symptom) 66 10 94 43 50 None
Boyce et al [19], 2014 (OHDSIj knowledge base) Event (symptom) 1000 100 100,000 ATC, RxNorm, and ICD

aADR: adverse drug reaction.

bRS-ADR: reference standard for adverse drug reaction.

cATC: Anatomical Therapeutic Chemical.

dMedDRA: Medical Dictionary for Regulatory Activities.

eWHO-ART: World Health Organization Adverse Reactions Terminology.

fLOINC: Logical Observation Identifiers Names and Codes.

gICD: International Classification of Diseases.

hNot available.

iOMOP: Observational Medical Outcomes Partnership.

jOHDSI: Observational Health Data Sciences and Informatics.