Table 2:

Linguistic results

Grammatical/language measures	Aβ(−) lvPPA n=6	Aβ(+) lvPPA n=15	agPPA n=15	Aβ(−)~Aβ(+) FDR p-value	Aβ(−)~agPPA FDR p-value	Aβ(+)~agPPA FDR p-value
Utterances	10.5 (8, 13)	11 (8, 12.5)	9 (7, 13.5)	0.842	0.937	0.933
Mean length of utterance (MLU)	12.26 (7.58, 15.00)	12.09 (10.60, 13.21)	7.00 (4.82, 8.44)	0.970	0.036*	<0.0001*
Word count	94.5 (68, 118.75)	112 (79.5, 118.5)	57 (34, 88)	0.622	0.173	0.006*
Ratio of Verbs: total words	0.15 (0.13, 0.16)	0.17 (0.16, 0.19)	0.15 (0.14, 0.17)	0.047*	0.791	0.021*
Ratio of Nouns: total words	0.21 (0.20, 0.23)	0.22 (0.19, 0.25)	0.32 (0.29, 0.41)	0.791	0.001	<0.0001*
Ratio Function words: total words	0.37 (0.34, 0.38)	0.47 (0.43, 0.52)	0.44 (0.37, 0.47)	0.005*	0.213	0.245
Ratio of Correct verbs: total verbs	0.87 (0.85, 0.887)	1 (1, 1)	0.83 (0.44, 0.92)	<0.001*	0.413	<0.0001*
Ratio of Grammatical utterances: total utterances	0.44 (0.33, 0.53)	0.89 (0.74, 0.92)	0.36 (0.21, 0.56)	0.002*	0.559	<0.0001*
Ratio of Ungrammatical utterances: total utterances	0.42 (0.21, 0.49)	0.09 (0.04, 0.22)	0.50 (0.26, 0.66)	0.050	0.436	<0.001*
Ratio of Non-utterances: total utterances	0.10 (0.02, 0.26)	0 (0, 0)	0.14 (0, 0.30)	0.004*	0.968	0.002*
Ratio of Complex utterances: total utterances	0.14 (0.03, 0.56)	0.15 (0.10, 0.38)	0 (0, 0)	0.969	0.013	<0.001*
Ratio of Semantic errors: total words	0.04 (0.02, 0.06)	0.01 (0, 0.02)	0.02 (0, 0.05)	0.008*	0.411	0.090
Ratio of Syntactic errors: total words	0.02 (0.01, 0.04)	0 (0, 0)	0.03 (0.01, 0.06)	0.005*	0.459	<0.0001*

Data are shown as Median (IQR). Values significant after FDR correction are marked with an asterisk.