Table 5.

Aprosody-Related Acoustic Phonetic (Pitch and Formant) Measures in Patients with Aprosody (n=25), Patients without Aprosody (n=29), and Controls (n=101)

	Unadjusted/Crude Mean-by-Group Tests					Adjusted Mean-by-Group Tests*
	A. Patients with aprosody	B. Patients without aprosody	C. Controls	Sig.	Post-Hoc Test	A. Patients with aprosody	B. Patients without aprosody	C. Controls	Sig.	Post-Hoc Test
Variation in Pitch (F0) by Task
Task 1	6.77	6.73	7.24	n.s.		6.95	7.33	7.00	<.001
Task 2	6.72	6.08	6.53	n.s.		6.92	6.73	6.29	<.001
Task 3	5.90	6.06	6.84	n.s.		6.19	6.67	6.58	<.001
Task 4	6.65	6.63	7.67	n.s.		6.63	7.30	7.50	<.001
Task 5	6.93	6.91	8.28	<.05	a<c	6.84	7.59	8.12	<.001	A<C
Variation in Formant F1 by Task
Task 1	0.91	0.84	1.02	<.05	B<C	0.95	0.88	1.01	<.01
Task 2	0.99	0.89	1.03	n.s.		1.02	0.93	1.01	<.001
Task 3	0.97	0.89	1.00	n.s.		1.03	0.93	0.98	<.001
Task 4	0.85	0.84	0.97	<.05	a<c, b<c	0.86	0.89	0.96	<.001
Task 5	0.92	0.90	1.05	<.05	b<c	0.93	0.96	1.04	<.001
Variation in Formant F2 by Task
Task 1	1.42	1.43	1.52	n.s.		1.44	1.45	1.51	n.s.
Task 2	1.37	1.48	1.48	n.s.		1.38	1.50	1.47	<.05
Task 3	1.28	1.43	1.45	<.01	A<B, A<C	1.30’	1.44	1.44	n.s.	a<b, A<C
Task 4	1.46	1.57	1.62	<.05	A<C	1.45	1.57	1.62	n.s.	A<C
Task 5	1.40	1.49	1.54	<.05	A<C	1.39	1.49	1.55	n.s.	A<C

^*Adjusted for gender, race, ethnicity, marital status, living with, employment status, and education. To control for multiple comparisons Bonferroni adjustment was used for post hoc tests.

Sig. refers to the global F for the model. In adjusted analyses, demographic differences may drive overall model significance rather than linguistic variables.

Post-Hoc test:

Uppercase (A, B, C) indicates significant differences between means at p < .05.

Lowercase (a, b, c) indicates significant differences between means at p < .10 (but >.05).