Table 4.

Comparison of the VFSS intervals (sec) with the FSR intervals (sec).

VFSS Interval	$\mathbf{Mean} \pm \mathbf{SD}$	FSR Interval	$\mathbf{Mean} \pm \mathbf{SD}$	Mean of Diff	Diff Ratio	Correl	p
(TC1–TC2)	0.782$\pm$0.02	F1–F2	0.762$\pm$0.32	0.020	2.7%	0.91	0.84
(TC2–TC3)	0.580$\pm$0.13	F2–F3	0.591$\pm$0.23	0.011	1.9%	0.92	0.75
(TC1–TC3)	1.363$\pm$0.16	F1–F3	1.353$\pm$0.35	0.010	0.8%	0.96	0.53

(SD, standard deviation; Diff =|VFSS interval – FSR interval|; Diff ratio = Diff/VFSS interval; Correl, correlation; p < 0.05 difference is statistically significant).