Nine to 12% of subjects reported the presence of MS in two anatomical regions for at least 30 days (Table 6) with a predominance of symptoms affecting the axial and upper limb regions (51.3% of symptoms localized to two regions).
The anatomical regions most frequently involved were the axial and upper limb regions with a prevalence of MS lasting at least 30 days over the past 12 months of 18 to 23% (Table 4).
The majority of these multisite MS were widespread, involving at least two of the three anatomical regions (upper limb, axial region and lower limb).
Participants with pain identified their primary pain site from a list of ten sites according to the International Association for the Study of Pain site categories [ 26]: Head and face, neck, shoulder and upper limbs, thoracic region, abdomen, lower back, lower limbs, pelvic region, perineal and genital region, and multiple sites.
In attempting to reestablish the lympho-venous balance of the upper limb and breast region after breast cancer treatment, the body makes use of compensatory mechanisms, which attempt to avoid edema.
In comparison with OCRA, ULRA requires determining the upper limb posture in the arm region.
About one quarter of subjects (Table 5) reported the presence of MS involving a single anatomical region during the past 12 months (25.7% of men and 21.9% of women), usually involving axial regions in men (45.4% of symptoms localized to one region) and the upper limb in women (54.3% of symptoms localized to one region).
In results presented by anatomical region (axial, upper limb and lower limb), the neck was considered to be part of the upper limb.
After characterizing the average group effects, we tested for the regional structural correlates of upper limb function in the same regions of interest.
