Table 2.

Spondyloarthropathy Characteristics

Variables	Patients with ReA (n=32)
History of Peripheral Arthritis n (%)	32 (100 %)
History of Sero-Negative SpAs n (%)	3 (9 %)
First-Degree Relatives with SpAs n (%)	2 (6 %)
Symptoms n (%)
Back pain	29 (91 %)
Uveitis	20 (63 %)
SpA Medications n (%)
NSAIDs	31 (97 %)
Glucocorticoids	2 (6 %)
Medicinal Herbs	10 (31 %)
Abnormal Imaging (?*)
Ultrasound Achilles Enthesopathy	14 (44 %)
Tender Joints n (%)
Right Sacroiliac	27 (82 %)
Left Sacroiliac	25 (76 %)
Right Ankle	16 (49 %)
Left Ankle	18 (55 %)
Right Elbow	18 (55 %)
Left Elbow	10 (30%)
Right Knee	7 (21%)
Left Knee	9 (27%)
Right Shoulder	16 (50%)
Left Shoulder	6 (18%)
Right Wrist	4 (12%)
Left Wrist	3 (9%)
Right Distal Interphalangeal	0 (0%)
Left Distal Interphalangeal	0 (0%)
Right Proximal Interphalangeal	2 (6%)
Left Proximal Interphalangeal	1 (3%)
Right Metacarpal	5 (15%)
Left Metacarpal	2 (6%)
Right Metatarsal	1 (3%)
Swollen Joints n (%)
Right Ankle	3 (9 %)
Left Ankle	4 (13 %)
Right Elbow	2 (6 %)
Left Elbow	3 (9%)
Right Knee	1 (3%)
Left Knee	1 (3%)
Right Wrist	2 (6%)
Left Wrist	2 (6%)
Right Proximal Interphalangeal	1 (3%)
Left Metacarpal	1 (3%)
Tender Entheses
Right Achilles Tendon	22 (69 %)
Left Achilles Tendon	22 (69 %)
Right Medial Femoral Condyle	17 (53 %)
Left Medial Femoral Condyle	16 (50%)
Right Lateral Femoral Condyle	7 (22%)
Left Lateral Femoral Condyle	7 (22%)
Right Plantar Fascia	16 (50%)
Left Plantar Fascia	15 (47%)

^*Most controls did not report any SpA related symptoms, medication use, joint tenderness, or enthesopathy with the exception of 6% reporting uveitis, 16% reporting herbal medication use, and 6% found to have abnormal ultrasound Achilles enthesopathy imaging.