| Name of the Instrument/Tool | Dougados Functional Index (DFI) |
| First Description |
Dougados M, Gueguen A, Nakache JP, Nguyen M, Mery C, Amor B. Evaluation of a functional index and an articular index in ankylosing spondylitis. J Rheumatol 1988;15:302–7. |
| Year | 1988 |
| Domains | |
| Concept of constructs | Physical function |
| Population/Disease | Disease specific |
| Originally developed for | Ankylosing spondylitis (AS) |
| Other rheumatic diseases where can be applied (only if validated) |
Axial Spondyloarthritis, Psoriatic Arthritis (PsA) |
| Additional population with no rheumatic diseases |
No |
| Language: Originally published in | English |
| Available in Language | English, Finnish, French, Italian, Russian, Spanish, Turkish |
| REFERENCE IDENTIFICATION | |
| Author/s | Dougados M |
| Title | Evaluation of a functional index and an articular index in ankylosing spondylitis. |
| Journal | J Rheumatol |
| Year | 1988 |
| Vol | 15 |
| Num | --- |
| Pages | 302-7 |
| Country | France |
| Language | English |
| Other references of interest | |
| Link | http://www.ncbi.nlm.nih.gov/pubmed/10229428 |
| Brief Description |
A comparative study of the usefulness of the Bath Ankylosing Spondylitis Functional Index and the Dougados Functional Index in the assessment of ankylosing spondylitis (Dutch). |
| Link | http://www.ncbi.nlm.nih.gov/pubmed/12412201 |
| Brief Description |
The Dougados functional index with the 5-point Likert scale is sensitive to change due to intensive physiotherapy and exercise in spondyloarthropathy. |
| Link | http://www.ncbi.nlm.nih.gov/pubmed/10493677 |
| Brief Description |
Comparative responsiveness of 3 functional indices in ankylosing spondylitis.
|
| Instrument/Tool Translations References | |
| Link | http://www.ncbi.nlm.nih.gov/pubmed/3283358 |
| Brief Description |
Evaluation of a functional index and an articular index in ankylosing spondylitis (DFI – French). |
| Link | http://www.ncbi.nlm.nih.gov/pubmed/16258600 |
| Brief Description |
Validation of the Italian versions of the Bath Ankylosing Spondylitis Functional Index (BASFI) and the Dougados Functional Index (DFI) in patients with ankylosing spondylitis. |
| Link | http://www.ncbi.nlm.nih.gov/pubmed/10229428 |
| Brief Description |
A comparative study of the usefulness of the Bath Ankylosing Spondylitis Functional Index and the Dougados Functional Index in the assessment of ankylosing spondylitis (Dutch). |
| DEVELOPER CONTACT INFORMATION | |
| Correspondence to | Professor Maxime Dougados |
| maxime.dougados@cch.aphp.fr | |
| Address | Service de Rhumatologie B, Hôpital Cochin, 27 rue du Faubourg Saint-Jacques, 75014 Paris, France |
| Website | --- |
| Available | --- |
| Links | --- |
| DESCRIPTION OF THE INSTRUMENT | |
| Type Of Measure | Questionnaire |
| Brief Description |
Patient self-administered questionnaire used to measure patient-reported physical function in patients with AS/axial SpA. Items cover activities of daily living including dressing, bathing, standing, climbing stairs, changing position, bending, doing housework or usual job, coughing or sneezing, and breathing deeply. Each question begins with “Can you…” |
| Number of Items | 20 |
| Range | 0-40 |
| Responses options/scale |
Yes 5 intervals from without difficulty to impossible to do (0 to 1) |
| Developed for | Both |
| PRACTICAL APPLICATION | |
| Method of administration | Self-administered |
| Recommendations to score |
The sum of the individual scores is calculated to give the overall index score. |
| Score Interpretation | Score range is 0–40, with 0 reflecting no functional impairments and 40 reflecting maximal impairment. |
| Cut-off points | --- |
| Cut-off points applied to | --- |
| Smallest detectable change if described | --- |
| Smallest detectable change applied to | --- |
| Completion time by the patient | - minutes |
| Scoring time by the assessor | - minutes |
| Training to score | Not necessary |
| Strengths | Easy to use, Useful in clinical practice & research |
| Limitations | --- |
| OTHER COMMENTS | |
| Other Comments |
The DFI questionnaire is available online (in multiple translations) at http://www.asas-group.org For further information, please contact the developers. |