Specific instruments for each domain in core sets for DC-ART, SM-ARDs/physical therapy, and clinical record keeping4
| Domain | Instrument |
|---|---|
| AP, anteroposterior; AS, ankylosing spondylitis; BASFI, Bath Ankylosing Spondylitis Functional Index; ESR, erythrocyte sedimentation rate; SI, sacroiliac; VAS, visual analogue scale. | |
| Function | BASFI or Dougados Functional Index |
| Pain | VAS, past week, spine, at night, due to AS and VAS past week, spine, due to AS |
| Spinal mobility | Chest expansion and modified Schober and occiput-to-wall distance |
| Patient global | VAS, past week |
| Stiffness | Duration of morning stiffness, spine, past week |
| Peripheral joints and entheses | Number of swollen joints (44 joint count); currently no preferred instruments available for entheses |
| Acute phase reactants | ESR |
| Radiograph spine | AP + lateral lumbar and lateral cervical spine and X-pelvis (SI and hips) |
| Radiograph hips | See spine |
| Fatigue | Currently no preferred instruments |