2006 versus 2016 GRAPPA-OMERACT PsA Core Domain Sets.
| Inner Circle (2006) | 2016 |
| Peripheral joint activity | MSK disease activity |
| Skin activity | Skin disease activity |
| Pain | Pain |
| Patient’s global | Patient’s global |
| Physical function | Physical function |
| HRQOL | HRQOL |
| Fatigue | |
| Middle Circle (2006) | 2016 |
| Enthesitis | Participation |
| Dactylitis | Emotional well-being |
| Spine | Economic costs |
| Nails | Structural damage |
| Physician’s global | |
| Fatigue | |
| Radiology | |
| Acute-phase reactants | |
| Outer Circle (2006) | 2016 |
| Participation | Stiffness |
| Tissue analysis | Independence |
| MRI | Treatment burden |
| Computed tomography | Sleep |
| Ultrasound | |
GRAPPA: Group for Research and Assessment of Psoriasis and Psoriatic Arthritis; OMERACT: Outcome Measures in Rheumatology Clinical Trials; PsA: psoriatic arthritis; MSK: musculoskeletal; HRQOL: health-related quality of life; MRI: magnetic resonance imaging.