The 10 BASFI items (the patients must indicate their level of ability for each of the 10 activities on a 10 cm VAS) and the 20 items of the DFI (all begin with “Can you . . .”) on a three point scale
| BASFI (Questionnaire item No) | DFI (Questionnaire item No) |
|---|---|
| BASFI, Bath Ankylosing Spondylitis Functional Index; DFI, Dougados Functional Index; VAS, visual analogue scale. | |
| Items with similar content | |
| Putting on your socks or tights without help or aids (e.g., sock aid) (1) | Put on your shoes (1) |
| Bending forward from the waist to pick up a pen from the floor without an aid (2) | Bend over to pick up an object (11) |
| Getting up out of an armless dining room chair without using your hands or any other help (4) | Get up from a chair (9) |
| Getting up off the floor from lying on your back without help (5) | Turn in bed (14) |
| Sleep on your back (16) | |
| Standing unsupported for 10 minutes without discomfort (6) | Remain standing for 10 minutes (5) |
| Climbing 12–15 steps without using a handrail or walking aid (one foot for each step) (7) | Climb one flight of stairs (6) |
| Doing the full day’s activities, whether it be at home or at work (10) | Do your job or housework (18) |
| Items with different content | |
| Reaching up to a high shelf without help or aids (e.g., helping hand) (3) | Pull on a pullover (3) |
| Looking over your shoulder without turning your body (8) | Get into a bathtub (4) |
| Doing physically demanding activities (e.g., physiotherapy, exercises, gardening, or sports) (9) | Run (7) |
| Sit down (8) | |
| Get into a car (10) | |
| Crouch (12) | |
| Lie down (13) | |
| Sleep on your stomach (17) | |
| Cough or sneeze (19) | |
| Breathe deeply (20) | |