Demographic and clinical details^{^a}

Group/Measure	Recovered		Moderate		Severe
Group/Measure	Current Study(n = 5)	Entire Study (n = 30)	Current Study(n = 10)	Entire Study (n = 33)	Current Study(n = 8)	Entire Study (n = 15)
Sex (M/F)	3/2	13/17	8/2	4/29	6/2	3/12
BMI	23.5 (3.8)	24.9 (3.9)	24.5 (5.6)	24.4 (4.4)	25.3 (3.8)	27.6 (5.6)
Age	35.3 (12.8)	33.1 (10.2)	35.7 (13.8)	35.3 (12.1)	36.1 (13.2)	36.8 (11.3)
Days since MVC	349.6 (149.3)	383.3 (35.7)	273 (137.3)	385.9 (20.4)	385 (141.3)	420.3 (79.7)
NDI^{^b}	4.8 (4.6)	5.5 (6.4)	17 (9.7)	18.9 (10.2)	38.5 (13.1)	30.9 (13.9)
MFI	18.6 (5.5)	17.1 (4.9)	21.6 (6.6)	20.8 (6.9)	21.9 (7.2)	23.3 (6.8)
TIDS Total^{^b}	3.4 (4.9)	3.0 (4.2)	6.3 (5.3)	8.4 (5.1)	15.1 (8.3)	11.0 (6.3)
PDS Arousal Symptom Severity^{^b}	0.4 (0.9)	0.8 (1.5)	3.1 (2.7)	3.9 (2.8)	8 (3.6)	5.3 (4.2)
Pain^{^b}	1.2 (2.2)	1.2 (1.6)	3.1 (2.7)	3.8 (2.6)	6 (1.8)	5.1 (2.7)
HADS Depression^{^b}	0.8 (1.3)	1.6 (2.6)	2.6 (2.4)	2.7 (2.2)	8.2 (4.9)	5.8 (4.5)
Modularity^{^b}	0.55 (0.04)	n/a	0.47 (0.07)	n/a	0.46 (0.10)	n/a

Note:—BMI indicates body mass index; NDI, Neck Disability Index; MFI, muscle fat infiltration; TIDS, Traumatic Injury Distress Scale; PDS, Posttraumatic Diagnostic Scale; HADS, Hospital Anxiety and Depression Scale.
↵a Presented as counts or mean (SD).
↵b Significant pair-wise comparisons of groups within this study. NDI: Recovered versus moderate (P = .005), recovered versus severe (P < .001), moderate versus severe (P = .002); TIDS: Recovered versus severe (P = .01), moderate versus severe (P = .02); PDS: Moderate versus severe (P = .007), recovered versus severe (P < .001), recovered versus moderate (P = .01); pain: Recovered versus severe (P = .003), moderate versus severe (P = .02); HADS depression: Recovered versus severe (P = .003), moderate versus severe (P = .01); modularity: Recovered versus moderate (P = .02), recovered versus severe (P = .05).