Table 3.

Comparison of residue severity and clearance between thin and carbonated liquids

	Thin liquids				Carbonated liquids
	Vallecula residue (n = 82)	Vallecula clearance (n = 71)	Piriform sinus residue (n = 82)	Piriform sinus clearance (n = 71)	Vallecula residue (n = 84)	Vallecula clearance (n = 72)	Piriform sinus residue (n = 83)	Piriform sinus clearance (n = 72)
All patients	1.77 ± 0.93a	0.70 ± 0.79a	1.67 ± 0.93a	0.63 ± 0.77a	1.58 ± 0.84a	0.57 ± 0.70a	1.52 ± 0.88a	0.51 ± 0.78a
Neurogenic dysphagia	1.8 ± 0.97a	0.7 ± 0.79b	1.72 ± 0.92a	0.63 ± 0.67	1.55 ± 0.79a	0.54 ± 0.59b	1.58 ± 0.85a	0.52 ± 0.67
Head and neck oncology with radiation	2 ± 1.05	0.7 ± 0.68	1.4 ± 0.7	0.33 ± 0.5	1.8 ± 1.14	0.56 ± 0.73	1.3 ± 0.67	0.22 ± 0.44
Deconditioning	1.7 ± 0.88	0.75 ± 1.0	1.5 ± 0.76b	0.65 ± 1.0a	1.6 ± 0.88	0.69 ± 1.0	1.35 ± 0.75b	0.5 ± 1.0a
Non-oncologic neck surgery	1.4 ± 0.55	0.6 ± 0.55	2.4 ± 1.67	1.2 ± 1.1	1.4 ± 0.55	0.6 ± 0.55	2 ± 1.73	1 ± 1.22

Values presented are mean ± standard deviation. Analysis performed with Wilcoxon signed-rank test

^aP < 0.05

^bP < 0.1