Table 3.

Number of cases identified by natural language processing (NLP) in the base study population (n=53,585).

Natural language processing–identified cases			n		%a (n=53,585)		%b (n=46,086)
Shoulder injury identified			46,086		86		—c
Anatomic site
	Laterality identified	44,488		83		96.5
	Laterality mismatch	1220		2.3		2.6
Causality
	Cause identifiedd	25,325		47.3		55.0
	Cause identifiede	19,039		35.5		41.3
Temporality
	Onset identified	45,252		84.4		98.2
	Symptom duration >30 days postvaccination	35,135		65.6		76.2
SIRVAf cases			467		0.9		1

^aPercentage of cases among the number of cases with shoulder injury diagnosis code (n=53,585).

^bPercentage of cases among the number of natural language processing–identified shoulder injury cases (n=46,086).

^cNot applicable.

^dIncludes unknown cause stated in the clinical notes.

^eExcludes unknown cause stated in the clinical notes.

^fSIRVA: shoulder injury related to vaccine administration.