Table 3.

Summary of Objective Cough Measures and CNS^*

	Aspiration
Variables	All (n = 96)	No (n = 63)	Yes (n = 33)	p Value†
Inspiration phase duration, s	0.94 (0.03)	0.91 (0.04)	1.00 (0.07)	0.1872
Inspiration phase volume, L	0.61 (0.05)	0.69 (0.06)	0.45 (0.08)	0.0284
Inspiration phase peak flow, L/s	1.23 (0.08)	1.44 (0.09)	0.82 (0.11)	0.0001
Glottic phase duration, s	0.25 (0.02)	0.25 (0.02)	0.25 (0.03)	0.8914
Sound pressure level, dB	91.96 (1.41)	96.41 (1.01)	83.74 (3.10)	< 0.0001
Expulsive phase peak flow, L/s	4.36 (0.32)	5.62 (0.38)	1.98 (0.27)	< 0.0001
Expulsive phase rise time, ms	95.06 (10.62)	14.05 (28.26)	161.50 (27.73)	< 0.0001
Volume acceleration, L/s/s	97.42 (9.39)	136.15 (11.20)	23.49 (6.10)	< 0.0001
CNSS score onsite	8.85 (0.20)	9.40 (0.19)	7.80 (0.40)	< 0.0001
CNSS at swallowing	9.01 (0.20)	9.56 (0.19)	7.95 (0.38)	< 0.0001

^*Values are given as the mean (SE), unless otherwise indicated. CNSS score onsite = CNSS score at the time of administration (ie, stoke onset); CNSS at swallowing = CNSS score at the time of swallowing evaluation.

^†From analyses of covariance adjusting for age and race.