Table 2.

Mean frequency and standard deviations (in parentheses) of stuttering-like disfluencies.

		Persistent			Recovered			Control
	n	Mean	SD	N	Mean	SD	n	Mean	SD
				Visit 1
PW1		4.16	4.68		3.36	3.54		0.69	0.40
SS1		3.06	4.04		2.85	1.91		0.62	0.45
DP1	19	2.36	3.03	39	2.13	1.81	40	0.34	0.31
RU1		1.49	0.31		1.43	0.35		1.08	0.09
SLD1		9.58	11.34		8.34	6.01		1.65	0.86
				Visit 3
PW3		3.08	2.50		1.16	1.14		0.50	0.34
SS3		2.20	1.35		1.15	1.12		0.45	0.45
DP3	19	2.90	3.29	39	0.93	1.62	40	0.28	0.27
RU3		1.32	0.20		1.20	0.27		1.07	0.10
SLD3		8.18	6.02		3.24	3.43		1.23	0.83
				Visit 5
PW5		2.15	2.58		0.44	0.28		0.42	0.40
SS5		1.83	1.24		0.61	0.49		0.40	0.47
DP5	18	1.49	2.02	38	0.23	0.25	38	0.16	0.28
RU5		1.23	0.14		1.14	0.29		1.06	0.10
SLD5		5.48	5.07		1.28	0.80		0.98	0.92
				Visit 6
PW6		1.71	3.08		0.37	0.20		0.35	0.31
SS6		1.37	1.03		0.56	0.43		0.49	0.53
DP6	17	1.16	1.81	31	0.12	0.11	31	0.07	0.10
RU6		1.22	0.18		1.06	0.08		1.03	0.06

PW = Part word repetitions

SS = Single syllable word repetitions

DP = Disrhythmic phonation

RU = Repetition units

SLD = Stuttering-like disfluencies