A comparison of physical and psychological features of responders and non-responders to cervical facet blocks in chronic whiplash

Table 5 Median [Interquartile range] scores of each group for psychological measures

Group (n)	GHQ-28% ≥23	Score [IQR]	PCS % ≥30	Score [IQR]	PDS % met criteria probable PTSD	Severity score [IQR]
WAD_R (58)	64%	24 ^* [19-32]	16%	15 [7-23]	29%	7 [2-13]
WAD_NR (32)	66%	28 ^* [21-41]	50% ^*	30 ^‡ [13-39]	44%	12 [5-20]
HC (30)	7%	14 [10-16]

Legend: GHQ = General Health Questionnaire; PCS = Pain Catastrophization Scale; PDS = Post Traumatic Stress Diagnostic Scale; WAD_R = WAD Responders; WAD_NR = WAD Non Responders; HC = Healthy Controls; *p < 0.001; ‡p < 0.01.

ISSN: 1471-2474