Table 1.

Definitions used for analysis of algorithm function

Term	Definition
True positive	eCRF episode with a matching EHR episode, even if an EHR episode is used more than once
False positive	EHR episode with no matching eCRF episode
False negative	eCRF episode with no matching EHR episode
Sensitivity	Calculated as true positives / (true positives + false negatives)
Positive predictive value	Calculated as true positives / (true positives + false positives)

Abbreviations: eCRF, electronic case report form; EHR, electronic health record.