. 2022 Oct 28;65(11):4112–4132. doi: 10.1044/2022_JSLHR-22-00177

Table 5.

Comparison of study-determined MSI predominance: quantitative speech measures versus auditory-perceptual ratings (MSI+ group only).

Group	Case	Syndrome dx	Quantitative MSI predominance (AOS ⁺ , Dys ⁺ ) ^a	Auditory-perceptual MSI predominance (AOS ⁺ , Dys ⁺ ) ^b
MSI+	10	PPAOS	Dys ⁺	Dys ⁺
	11	nfvPPA	AOS ⁺	AOS ⁺
	12	CBS	AOS ⁺	AOS ⁺
	13	PSP	Dys⁺	AOS⁺
	14	nfvPPA	AOS ⁺	AOS ⁺
	15	PSP	Dys ⁺	Dys ⁺
	16	PPAOS	AOS ⁺	AOS ⁺
	17	PPAOS	AOS ⁺	AOS ⁺
	18	PPAOS	AOS ⁺	=
	19	CBS	AOS⁺	Dys⁺
	20	nfvPPA	Dys ⁺	Dys ⁺

Note. Bold text indicates agreement (bold = agree; nonbold = disagree) between predominance rating given by quantitative features as compared with auditory-perceptual rating. Italicized text (Case 18) indicates that agreement could not be assessed because auditory-perceptual ratings did not establish a predominance of either AOS or dysarthria. dx = diagnosis; AOS = apraxia of speech; Dys = dysarthria; MSI+ = motor-speech–impaired group of individuals with nfvPPA, PPAOS, CBS, or PSP and suspected four-repeat tauopathy pathology; PPAOS = primary progressive apraxia of speech; nfvPPA = nonfluent variant primary progressive aphasia; CBS = corticobasal syndrome; PSP = progressive supranuclear palsy.

Predominant impairment based on quantitative speech features, rated for the MSI+ group only. Predominance determined from a ratio of mean |z|, AOS features to mean |z|, dysarthria features. AOS ⁺ (|z|_AOS > |z|_dys) indicates predominant apraxic impairment; Dys ⁺ (|z|_dys > |z|_AOS) indicates predominant dysarthric impairment.

Predominant impairment based on independent auditory-perceptual ratings, rated for the MSI+ group only. Predominance determined from a ratio of mean (across two speech-language pathologist raters) scores for AOS to dysarthria severity. “AOS+” (i.e., mean rated severity AOS > Dys) indicates predominant apraxic impairment; “Dys+” (i.e., mean rated severity Dys > AOS) indicates predominant dysarthric impairment; “=” (i.e., mean rated severity AOS = Dys) indicates no predominance of either apraxia or dysarthria.