| Name of the Instrument/Tool | Impact Index |
| First Description |
Valentine KD, Brodney S, Vo H, et al. Validation of the Impact Index: can we measure disease effects on quality of life in patients with hip and knee osteoarthritis? Qual Life Res. 2021 Apr;30(4):1191-1198. |
| Year | 2021 |
| Domains | |
| Concept of constructs | Health related quality of life |
| Population/Disease | Generic |
| Originally developed for | Osteoarthritis (OA) |
| Other rheumatic diseases where can be applied (only if validated) |
--- |
| Additional population with no rheumatic diseases |
Yes Benign Prostatic Hyperplasia |
| Language: Originally published in | English |
| Available in Language | --- |
| REFERENCE IDENTIFICATION | |
| Author/s | Valentine KD, Brodney S, Vo H, Sepucha K, Fowler FJ, Barry MJ |
| Title | Validation of the Impact Index: can we measure disease effects on quality of life in patients with hip and knee osteoarthritis? |
| Journal | Qual Life Res |
| Year | 2021 |
| Vol | 30 |
| Num | 4 |
| Pages | 1191-1198 |
| Country | USA |
| Language | English |
| Other references of interest | |
| Link | https://pubmed.ncbi.nlm.nih.gov/7536866/ |
| Brief Description |
Measuring disease-specifc health status in men with benign prostatic hyperplasia |
| Instrument/Tool Translations References | |
| No other References. | |
| DEVELOPER CONTACT INFORMATION | |
| Correspondence to | Michael J Barry |
| MBarry@mgh.harvard.edu | |
| Address | Division of General Internal Medicine, Massachusetts General Hospital, 100 Cambridge St, 16th Floor, Boston, MA, 02114, USA |
| Website | --- |
| Available | --- |
| Links | --- |
| DESCRIPTION OF THE INSTRUMENT | |
| Type Of Measure | Questionnaire |
| Brief Description |
The items ask about how much the person is bothered, worried, limited, or in pain from their health condition over the past 30 days. The response options included none=0, a little=1, some=2, and a lot=3. (2) Over the past 30 days, how much were you bothered by your [hip/knee]? (3) Over the past 30 days, how much did your [hip/knee] limit what you were able to do? (4) Over the past 30 days, how much pain or physical discomfort did your [hip/knee] cause you? |
| Number of Items | 4 |
| Range | 0-12 |
| Responses options/scale |
No |
| Developed for | --- |
| PRACTICAL APPLICATION | |
| Method of administration | Self-administered |
| Recommendations to score |
A total score (range 0–12), is calculated by summing scores on each of the four items |
| Score Interpretation | The higher the score, the greater impact the patient’s condition is having on their quality of life |
| 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 |
| Limitations | --- |
| OTHER COMMENTS | |
| Other Comments | --- |