Table 3.

P values of the different models for the Medication, Indication, and Adverse Drug Events (predicted entities) corpus.

Model	Model, P value
	BERTa	BioBERT	EhrBERT500kb	EhrBERT1Mc
MetaMap	<.001	<.001	<.001	<.001
BERT		.17	.02	.02
BioBERT			.04	.04
EhrBERT500k				.50

^aBERT: bidirectional encoder representations from transformers.

^bEhrBERT_500k: BERT-based model that was trained using 500,000 electronic health record notes.

^cEhrBERT_1M: BERT-based model that was trained using 1 million electronic health record notes.