| Name of the Instrument/Tool | Polymyalgia rheumatica-Impact Scale (PMR-IS) |
| First Description |
Twohig H, Mitchell C, Mallen CD, Muller S. Development and psychometric evaluation of the PMR-Impact Scale: a new patient reported outcome measure for polymyalgia rheumatica. Rheumatology (Oxford). 2023 Feb 1;62(2):758-765. doi: 10.1093/rheumatology/keac317. PMID: 35639659; PMCID: PMC9891434. |
| Year | 2022 |
| Domains | |
| Concept of constructs | Impact of disease |
| Population/Disease | Disease specific |
| Originally developed for | Polymyalgia Rheumatica |
| 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 | Twohig H, Mitchell C, Mallen CD, Muller S. |
| Title | Development and psychometric evaluation of the PMR-Impact Scale: a new patient reported outcome measure for polymyalgia rheumatica. |
| Journal | Rheumatology (Oxford) |
| Year | 2023 |
| Vol | 1 |
| Num | 62 |
| Pages | 758-765 |
| Country | UK |
| Language | English |
| Other references of interest | |
| Link | https://pubmed.ncbi.nlm.nih.gov/26568595/ |
| Brief Description |
Helliwell T, Brouwer E, Pease CT, Hughes R, Hill CL, Neill LM, Halls S, Simon LS, Mallen CD, Boers M, Kirwan JR, Mackie SL. Development of a Provisional Core Domain Set for Polymyalgia Rheumatica: Report from the OMERACT 12 Polymyalgia Rheumatica Working Group. J Rheumatol. 2016 Jan;43(1):182-6. doi: 10.3899/jrheum.141179. Epub 2015 Nov 15. PMID: 26568595. |
| Link | https://pubmed.ncbi.nlm.nih.gov/28694986/ |
| Brief Description |
Twohig H, Jones G, Mackie S, Mallen C, Mitchell C. Assessment of the face validity, feasibility and utility of a patient-completed questionnaire for polymyalgia rheumatica: a postal survey using the QQ-10 questionnaire. Pilot Feasibility Stud. 2017 Jul 6;4:7. doi: 10.1186/s40814-017-0150-y. Erratum in: Pilot Feasibility Stud. 2017 Oct 24;3:48. PMID: 28694986; PMCID: PMC5501557. |
| Instrument/Tool Translations References | |
| No other References. | |
| DEVELOPER CONTACT INFORMATION | |
| Correspondence to | Helen Twohig |
| h.j.twohig@keele.ac.uk | |
| Address | School of Medicine, Keele University, Keele, Staffordshire ST5 5BG, UK |
| Website | --- |
| Available | --- |
| Links | --- |
| DESCRIPTION OF THE INSTRUMENT | |
| Type Of Measure | Scale |
| Brief Description |
The PMR-IS is a newly developed patient-reported outcome measure (PROM) that has been designed to assess the impact of polymyalgia rheumatica (PMR) on patients' lives. The PROM was developed using a long-list of candidate items derived from a previous qualitative study and validated by a group of PMR patients. The PMR-IS has good construct validity and test-retest reliability, and it comprises items related to main symptoms/duration, function, emotional and psychological well-being, steroid side effects, and overall well-being. The PMR-IS was validated using the QQ-10 instrument, which has been shown to have high internal consistency and item correlation and to be acceptable and understandable to patients |
| Number of Items | 40 |
| Range | --- |
| Responses options/scale |
No |
| Developed for | --- |
| PRACTICAL APPLICATION | |
| Method of administration | Self-administered |
| Recommendations to score |
The score for each domain is the mean item score converted to a percentage. Question asked on severity: how severe has the (pain / stiffness / weakness) from your PMR been during the last 3 days? Responses options: visual analogue scale (VAS), scored from 0-10 where 0 = no pain and 10 = the worst pain you have ever felt. Question asked on duration: on average much of each day has the (pain / stiffness / weakness) from your PMR been present for during the last 3 days? Response options: 1 = less than 30 mins, 2 = less than 1 hour, 3 = around 1-3 hours, 4 = about half the day, 5 = all day |
| Score Interpretation | Higher scores indicate greater impact. |
| 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 | Useful in clinical practice & research |
| Limitations | --- |
| OTHER COMMENTS | |
| Other Comments |
For further information, please contact the developers. |