Table 2.

(a) Nakagami parameters vs. physician-based assessments of neck fibrosis
Groups	Nakagami PDF (10−5)	Shape parameter	Scaling parameter (108)
Post-RT Grad 0 Group (n=13)	4.70 ± 0.96	1.14 ± 0.33	3.09 ± 0.82
Post-RT Grad 1 Group (n=7)	5.00 ± 1.80	1.24 ± 0.27	3.39 ± 0.91
Post-RT Grad 2 Group (n=6)	4.71 ± 1.39	1.43 ± 0.40	3.40 ± 0.80
P-value (Grad 0 vs. Grad 1 Post-RT)	0.271	0.146	0.149
P-value (Grad 0 vs. Grad 2 Post-RT)	0.482	0.017	0.136
P-value (Grad 1 vs. Grad 2 Post-RT)	0.315	0.081	0.493

(b) Nakagami parameters vs. patient-based assessments of neck fibrosis
Groups	Nakagami PDF (10−5)	Shape parameter	Scaling parameter (108)
Control Group (n=12)	6.44 ± 1.55	0.81 ± 0.08	1.94 ± 0.51
Post-RT Asymptomatic Group (n=11)	4.57 ± 0.76	1.07 ± 0.11	3.02 ± 0.52
Post-RT Symptomatic Group (n=12)	4.77 ± 1.57	1.41 ± 0.39	3.56 ± 0.95
P-value (Control vs. AsymptomaticPost-RT)	<0.001	<0.001	<0.001
P-value (Control vs. Symptomatic Post-RT)	<0.001	<0.001	<0.001
P-value (Symptomatic Post-RT vs. Asymptomatic Post-RT)	0.271	<0.001	0.005
P-value (Control vs. Post-RT)	<0.001	<0.001	<0.001