Table 4.

Results of Automated Phenotyping Tool for identifying Developmental Language Disorder cases in health systems data (APT-DLD) classification when deployed in the replication sample as well as subsequent positive predictive value (PPV) and negative predictive value (NPV) in relation to inclusion and exclusion decisions from manually reviewed charts by a speech-language pathologist clinician coder (n = 136; 1% of the total replication sample N = 13,652).

Group	Category	Replication sample
		APT-DLD algorithm classification n (%)	Clinician gold standard
Inclusion	1	3,030 (22)	PPV = 90%
	2	2,983 (22)
Exclusion	3	6,729 (49)	NPV = 64%
	4	910 (7)

Note. PPV refers to the inclusion group, whereas NPV refers to the exclusion group.