| Name of the Instrument/Tool | Rheumatoid Arthritis Foot Disease Activity Index 5 (RADAI-F5) |
| First Description |
Hoque A, Gallagher K, McEntegart A, Porter D, Steultjens M, Woodburn J, Hendry GJ. Measuring Inflammatory Foot Disease in Rheumatoid Arthritis: Development and Validation of the Rheumatoid Arthritis Foot Disease Activity Index-5. Arthritis Care Res (Hoboken). 2021 Sep;73(9):1290-1299. doi: 10.1002/acr.24259. Epub 2021 Aug 13. PMID: 32433810. |
| Year | 2021 |
| Domains | |
| Concept of constructs | Disease activity, Foot health |
| Population/Disease | Disease specific |
| Originally developed for | Rheumatoid Arthritis (RA) |
| Other rheumatic diseases where can be applied (only if validated) |
--- |
| Additional population with no rheumatic diseases |
No |
| Language: Originally published in | English |
| Available in Language | --- |
| REFERENCE IDENTIFICATION | |
| Author/s | Hoque A, Gallagher K, McEntegart A, Porter D, Steultjens M, Woodburn J, Hendry GJ. |
| Title | Measuring Inflammatory Foot Disease in Rheumatoid Arthritis: Development and Validation of the Rheumatoid Arthritis Foot Disease Activity Index-5. |
| Journal | Arthritis Care Res (Hoboken). |
| Year | 2021 |
| Vol | 73 |
| Num | 9 |
| Pages | 1290-99 |
| Country | UK |
| Language | English |
| Other references of interest | |
| Link | https://pubmed.ncbi.nlm.nih.gov/7779122/ |
| Brief Description |
A self- administered rheumatoid arthritis disease activity index (RADAI) for epidemiologic research: psychometric properties and correlation with parameters of disease activity. |
| Link | https://pubmed.ncbi.nlm.nih.gov/18484698/ |
| Brief Description |
Patient- centred rheumatoid arthritis disease activity assessment by a modi-fied RADAI |
| Instrument/Tool Translations References | |
| No other References. | |
| DEVELOPER CONTACT INFORMATION | |
| Correspondence to | Gordon J. Hendry, PhD |
| gordon.hendry@gcu.ac.uk. | |
| Address | School of Health and Life Sciences, Glasgow Caledonian University, Cowcaddens Road, Glasgow, UK. |
| Website | https://www.gcu.ac.uk/hls/research/researchgroups/musculoskeletalhealth/radai-f5/ |
| Available | --- |
| Links | --- |
| DESCRIPTION OF THE INSTRUMENT | |
| Type Of Measure | Questionnaire |
| Brief Description |
The design and content of the Rheumatoid Arthritis Foot Disease Activity Index– 5 (RADAI- F5) was derived from the mRADAI- 5, a 5- item patient-reported outcome measure for the self- report of global disease activity. The RADAI- F5 was developed by editing the mRADAI- 5 with an opening statement: “Thinking only of your feet,” and editing the original questions to subsequently read as follows: “How active was your arthritis in your feet over the last 6 months?” (0 = completely inactive to 10 = extremely active); “How active is your foot arthritis today with respect to joint tenderness and swelling?” (0 = completely inactive to 10 = extremely active); “How severe is your arthritis pain in your feet today?” (0 = no pain to 10 = unbearable pain); “How would you describe your general foot health today?” (0 = very good to 10 = very bad); “Did you experience foot joint stiffness on awakening yesterday morning? If yes, how long was this stiffness in your feet?” (0 = no stiffness to 10 = stiffness the whole day). It was developed for rheumatologists and health professionals for measurement and monitoring of foot disease activity in people with rheumatoid arthritis in clinical practice, and/or researchers with an interest in the foot. |
| Number of Items | 5 |
| Range | 0-10 |
| Responses options/scale |
No |
| Developed for | Clinical practice, Research |
| PRACTICAL APPLICATION | |
| Method of administration | Self-administered |
| Recommendations to score |
The RADAI- F5 is completed in a numerical rating scale format from 0 to 10 and scored by an average summary score ranging 0– 10. |
| Score Interpretation | Scored by an average summary score ranging from 0 to 10. Higher scores indicate higher foot disease activity. |
| Cut-off points | Remission state is defined as a RADAI-F5 score ranging from 0 to 1.0; >1 to 3.6 for mild disease activity, >3.6 to 5.7 for moderate disease activity, and >5.7 to 10 for high disease activity. |
| Cut-off points applied to | Research, Routine care |
| Smallest detectable change if described | The 95% smallest detectable change value was estimated as 2.69, representing 26.9% of the RADAI-F5 scale maximum range, meaning that we can be 95% confident that a change score of 2.69 or more is a true change. |
| Smallest detectable change applied to | Routine care, Research |
| Completion time by the patient | 5 minutes |
| Scoring time by the assessor | - minutes |
| Training to score | Not necessary |
| Strengths | Easy to use |
| Limitations | --- |
| OTHER COMMENTS | |
| Other Comments | --- |