Table 3.

Number of annotations for each task

Task 1 (PHI elements)		Task 2.a (medications)			Task 2.b (diseases/disorders and signs/symptoms)
Entity Type		Entity Type	CTA	Clinical notes	Entity Type	FDA	CTA
Age	2,109	Medication name	9,968	12,517	Disease_Disorder	5,842	3,601
Date	13,060	Medication_Type	11,789	4,275	Sign_symptom	2,782	163
Email	14	Date	16	121
IDnum	1,117	Dosage	645	1,884
Institution	1,994	Duration	644	619
IPAddress	16	Form	482	4,413
Initials	10	Frequency	381	4,553
Location	396	Route	894	3,235
Name	7,776	Status change	598	2,983
Other	3,446	Strength	409	6,484
Phone Number	876	Modifier	5,827	1,770
Social_Security	1
All classes	30,815	All classes	31,653	42,854	All classes	8,624	3,764