Results of the clinimetric evaluation (EMPRO), second survey, patient focus group and final consensus meeting decision arranged in reverse chronology across the table—for each measure per domain. Data are frequency count (%) unless otherwise specified. The COS-LET is in ‘Part A’ and the interim suggestions of measures that might be used and studied are in ‘Part B’
| Part A: core outcome to be used in clinical trials and cohort studies | |||||||||
| Domain | Measure | Decision | Votes | Patient | Survey 2 | EMPRO | |||
| Yes* | Agreed | In | Out | Unsure | Interim | Score % | |||
| Disability | PRTEE | √ | 29 (100) | √ | 26 (70.3) | 5 (13.5) | 6 (16) | n/a | 57.0 |
| DASH | x | 3 (8.1) | 25 (67.6) | 9 (24.3) | n/a | 66.9 | |||
| Quick DASH | x | 22 (59.5) | 9 (24.3) | 6 (16.2) | n/a | 72.5 | |||
| Oxford Elbow Score | x | 6 (16.2) | 19 (51.4) | 12 (32.4) | n/a | 66.6 | |||
| Part B: interim suggestion for use in clinical trials and as a focus of future clinimetric research | |||||||||
| Domain | Measure | Decision | Votes | Patient | Survey 2 | EMPRO | |||
| Yes* | Agreed | In | Out | Unsure | Interim | Score % | |||
| Function | PRTEE—relevant items | √ | 30 (96.8) | √ | 24 (64.9) | 5 (13.5) | 8 (21.6) | 33 (89.2) | n/a |
| Pain over specified time | PRTEE pain subscale items 1, 4 and 5† | √ | 30 (96.8) | n/a | |||||
| Tennis Elbow Functional Scale | x | n/a | 3 (8.1) | 27 (73) | 7 (18.9) | 9 (24.3) | 41.7 | ||
| Physical function capacity | Pain-free grip strength | √ | 26 (86.7) | √ | 15 (40.5) | 11 (29.7) | 11 (29.7) | 24 (64.9) | 32.9 |
| Maximum grip strength | x | n/a | 6 (16.2) | 17 (46) | 14 (37.8) | 12 (32.4) | 25.1 | ||
| Pain on loading/activity | Pain on gripping† | √ | 25 (83.3) | n/a | n/a | n/a | n/a | n/a | |
| Tennis Elbow Functional Scale | x | – | 4 (10.8) | 27 (73) | 6 (16.2) | 7 (18.9) | 41.7 | ||
| PRTEE pain subscale items 2 and 3 | x | 19 (65.5) | √ | 24 (64.9) | 7 (18.9) | 6 (16.2) | 31 (83.8) | n/a | |
| Participation | Time off work | √ | 22 (73.3) | n/a | n/a | n/a | 26 (70.3) | n/a | |
| Time off sport | x | 18 (60) | n/a | n/a | n/a | 21 (56.8) | n/a | ||
| QoL | EQ5D | x | 20 (69) | n/a | n/a | n/a | 22 (59.5) | n/a | |
| SF-12 | x | 6 (20.7) | n/a | n/a | n/a | 14 (37.8) | n/a | ||
| Participant Rating of Condition | GROC | x | 20 (66.7) | √‡ | n/a | n/a | n/a | 21 (56.8) | n/a |
| Global Perceived Effect Score | x | n/a | n/a | n/a | n/a | 13 (35.1) | n/a | ||
| Patient Satisfaction Scale | x | n/a | n/a | n/a | n/a | 17 (46) | n/a | ||
| Psychological | Tampa Scale of Kinesiophobia | x | 10 (34.5) | √‡ | n/a | n/a | n/a | 16 (43.2) | n/a |
| Hospital Anxiety and Depression Scale | x | n/a | n/a | n/a | n/a | 14 (37.8) | n/a | ||
*Note that not all 31 attendees voted on all items (at least, 29 voted on 4 items)—due to time zone differences. See appendices for full data.
†Pain on gripping was voted in survey 1, had no clinimetric evidence but was strongly supported for interim use—noting there were 2 (6.7%) participants unsure.
‡Patients were asked for their opinions on which of the measures most closely measured their condition domain and was feasible clinically.
COS-LET, core outcome set for lateral elbow tendinopathy; DASH, Disabilities of the Arm, Shoulder and Hand Questionnaire; GROC, Global Rating of Change; PRTEE, Patient Rated Tennis Elbow Evaluation; QoL, quality of life; SF-12, 12-item Short Form Health Survey.