Table 4.

Cluster description, symptom intensity and localization

Cluster	Description	Symptom intensity (see text)	Symptom localization
1	Diffuse symptoms	Mild	N
2	Bilateral stiff aching neck/shoulder symptoms	Mild	Y
3	Chronic bilateral upper arm symptoms. Also, chronic bilateral hand/wrist/finger symptoms	Moderate	N
4	Bilateral overall burning pain with distal numbness and paraesthesias. Also, bilateral elbow symptoms, and arm stiffness and ache	Severe	N
5	Chronic bilateral elbow pain, predominantly right-sided aching arm and diffuse shooting/stabbing pain. Also, arm stiffness	Moderate	N
6	Chronic bilateral overall coldness, numbness, and paraesthesias. Also, overall pain and stiffness	Severe	N
7	Chronic bilateral overall aching, toothache, stabbing/sharp, burning pain with stiffness and numbness	Extreme	N
8	Chronic bilateral overall symptoms, dominated by coldness, numbness and paraesthesias. Bilateral stiffness, which is worse in the arms through hands than in the neck and shoulder. Chronic bilateral overall burning, toothache, shooting/stabbing, aching pain	Extreme	N