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Table 1 Data Source Inclusion Criteria for Eligibility and Definitions of Relatedness for Evaluability

From: Evaluation of the quality and value of data sources for postmarket surveillance of the safety of cough and cold medications in children

Data Source (Eligible)

 National Poison Data System (NPDS)

• NPDS is the data repository of records of exposures to pharmaceutical and non-pharmaceutical substances reported to all regional poison centers located throughout the United States.

• Cases were defined as those that reported a medical outcome of moderate effect, major effect, or death.

 Food and Drug Administration Adverse Event Reporting System (FAERS)

• FAERS is the database that contains adverse event reports, medication error reports and product quality complaints resulting in adverse events that were submitted to FDA.

• Fatal and non-fatal serious adverse events based upon the International Conference on Harmonisation (ICH) definition

 English Language Medical Literature

• Published scientific reports in abstract or full paper form.

• Cases were defined as those that met minimum eligibility criteria.

 Participating Manufacturer Postmarket Safety Databases

• Medication error or accident records reported to drug manufacturers via postmarket surveillance requirements

• Fatal and non-fatal serious adverse events based upon the International Conference on Harmonisation (ICH) definition

 News/Media Reports

• News and media reports indexed from an aggregate database of > 32,000 sources of headline information

• Cases were defined as those that met minimum eligibility criteria.

Definitions of Relatedness (Evaluable)a

 Related

• History of ingestion consistent with exposure

• Drug levels consistent with exposure, if available

• Clinical course consistent with exposure

• No other cause of death/event evident

 Potentially Related

• History of ingestion consistent with exposure

• Drug levels consistent with exposure, if available

• Clinical course consistent with exposure

• Other cause of death/event unlikely

• Drug may have been secondary cause of death/event

 Unlikely Related

• No history of ingestion

• Drug levels inconsistent with exposure

• Clinical course inconsistent with exposure

• Other cause of death/event possible

 Unable to Determine if Related

• Not enough case detail to evaluate relationship of drug to death/event

  1. aThe definitions of each relatedness category include the general characteristics of that definition. Cases meeting that definition are not required to have all defined characteristics