| Name of the Instrument/Tool | The Six-Item CTS Symptoms Scale (CTS-6) |
| First Description |
Quality of life Research |
| Year | 2009 |
| Domains | |
| Concept of constructs | Symptom severity |
| Population/Disease | Disease specific |
| Originally developed for | Carpal Tunnel Syndrome |
| 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 | English |
| REFERENCE IDENTIFICATION | |
| Author/s | Atroshi I, Lyren PE, Gummesson C. |
| Title | The 6-item CTS symptoms scale: a brief outcomes measure for carpal tunnel syndrome. |
| Journal | Quality of life Research |
| Year | 2009 |
| Vol | 18 |
| Num | --- |
| Pages | 347-358 |
| Country | --- |
| Language | English |
| Other references of interest | |
| No other References. | |
| Instrument/Tool Translations References | |
| No other References. | |
| DEVELOPER CONTACT INFORMATION | |
| Correspondence to | Isam Atroshi |
| Isam.Atroshi@skane.se | |
| Address | Department of Clinical Sciences, Lund University, Lund, Sweden |
| Website | --- |
| Available | --- |
| Links | --- |
| DESCRIPTION OF THE INSTRUMENT | |
| Type Of Measure | Questionnaire |
| Brief Description |
Developed based on the 11-item Symptom Severity Scale suggested by Levine et al [31]. Of the 11 CTS symptom severity scale items, 2 items that on factor analysis associated with the functional status items were removed. The questionnaire is composed of 6 tests varying from history and physical exam, namely: (1) numbness in the hand and fingers supplied by the median nerve, (2) muscle atrophy and/or weakness, (3) a positive Phalen’s test (standard clinical test used to diagnose carpal tunnel syndrome), (4) loss of 2-point discrimination (feeling 2 separate points touched on the skin), (5) numbness at night that wakes the patient up, and (6) a positive Tinel’s sign (another standard clinical test used to diagnose carpal tunnel syndrome). |
| Number of Items | 6 |
| Range | 1-5 |
| Responses options/scale |
Yes Mean of the 6 items scores 1= best outcome, 5= severe |
| Developed for | Both |
| PRACTICAL APPLICATION | |
| Method of administration | Interviewer/assessor, Self-administered |
| Recommendations to score |
5 point Likert Scale |
| Score Interpretation | For each patient, a CTS-6 score was calculated as the mean of the items answered by the patient, with only 1 missing item response allowed, and would thus range from 1 (best) to 5 (worst). |
| Cut-off points | --- |
| Cut-off points applied to | --- |
| Smallest detectable change if described | --- |
| Smallest detectable change applied to | --- |
| Completion time by the patient | 0 minutes |
| Scoring time by the assessor | 0 minutes |
| Training to score | Not necessary |
| Strengths | Easy to use |
| Limitations | --- |
| OTHER COMMENTS | |
| Other Comments | --- |