Summary of single items included in the BASDAI, ASDAS and RAPID3-like indices
| Items included in each index | BASDAI | ASDAS | RAPID3-like | Mean (SD) |
|---|---|---|---|---|
| BASDAI 1: Fatigue (0–10) How would you describe the overall level of fatigue/tiredness you have experienced? | ✓ | 5.5 (2.4) | ||
| BASDAI 2: Total Back Pain (0–10) How would you describe the overall level of AS neck, back or hip pain you have had? | ✓ | ✓ | ✓ | 5.1 (2.6) |
| BASDAI 3: Pain/swelling peripheral joints (0–10) How would you describe the overall level of pain/swelling in joints other than neck, back, hips you have had? | ✓ | ✓ | 2.6 (2.8) | |
| BASDAI 4: Enthesitis (0–10) How would you describe the overall level of discomfort you have had from any areas tender to touch or pressure? | ✓ | 3.8 (2.9) | ||
| BASDAI 5: Severity of Morning Stiffness (MS) (0–10) How would you describe the overall level of MS you have had from the time you wake up? | ✓ | 4.9 (2.8) | ||
| BASDAI 6: Duration of MS How long does your MR last from the time you wake up? | ✓ | ✓ | 3.8 (2.7) | |
| Patient global assessment (0–10) | ✓ | ✓✓ | 4.9 (2.6) | |
| Physical function (0–10) | ✓ | 2.2 (1.7) | ||
| CRP (mg/L) | ✓ | 8.9 (13.7) |
Mean and SD for each item.
ASDAS, Ankylosing Spondylitis Disease Activity Score; BASDAI, The Bath Ankylosing Spondylitis Disease Activity Index; MS, Morning Stiffness; RAPID3-like, routine assessment of patient index data-like.