Serum Soluble Interleukin-2 Receptor Does Not Differentiate Complex Regional Pain Syndrome from Other Pain Conditions in a Tertiary Referral Setting

Table 4

Patient demographics and general characteristics of the no CRPS and CRPS group.

Demographics and characteristics	No CRPS ()	CRPS ()	Significance
Age in years (median, (Q3-Q1))	43.0 (55.5-27.5)	37.0 (55.0-28.0)	NS
Duration of disease in months (median, (Q3-Q1))	20.0 (36.0-8.5)	26.0 (81.0-14.0)	NS
Gender			NS
Male (, %)	10 (34.5)	4 (17.4)
Female (, %)	19 (65.5)	19 (82.6)
Affected limb			NS
Right upper limb (, %)	6 (20.7)	5 (21.7)
Left upper limb (, %)	5 (17.2)	4 (17.4)
Right lower limb (, %)	6 (20.7)	4 (17.4)
Left lower limb (, %)	12 (41.4)	10 (43.5)
Precipitating injury			NS
Trauma	13 (44.8)	11 (47.8)
Operation	11 (37.9)	9 (39.1)
Spontaneous	5 (17.2)	0
Other	0	2 (8.7)
Unknown	0	1 (4.3)