Table 3.
Primary and secondary outcomes
| Measurement scale | Timea | |
|---|---|---|
| Primary outcome measure (patient-reported) | ||
| OsteoArthritis Quality Indicator Questionnaire [20] | 0–100 % (pass rate) | 0, 3, 6, 9,12 |
| Patient-reported secondary outcome measures | ||
| Pain level in hip/knee past week | NRS 0–10 | 0, 3, 6, 9,12 |
| Stiffness in the hip/knee past week | NRS 0–10 | ---“--- |
| Hip/knee function in the past week | NRS 0–10 | ---“--- |
| Patient global assessment of the OA disease | NRS 0–10 | ---“--- |
| Patient acceptable symptom state (PASS) | Acceptable/unacceptable | ---“--- |
| Function (Knee injury and Osteoarthritis Outcome Score OoL subscale [44]/Hip disability and Osteoarthritis Outcome Score OoL subscale [45] (K/HOOS) | 4 items, 5-point scale | ---“--- |
| Physical activity (frequency, intensity, duration) [47] | 3 items | ---“--- |
| Daily hours in sitting position | 1 item | ---“--- |
| Satisfaction with the care provided (from patient experience questionnaires [48]) | 1 item, 5-point scale | ---“--- |
| Health related quality of life (EQ-5D) [49] | 5 items, 5-point scale | ---“--- |
| Body weight | kg | ---“--- |
| Health care use past 3 months | ---“--- | |
| Patient Specific Functional Scale [43] | NRS 0–10 | Pre- and post exercise programme |
| Adverse events | 1 item | Exercise diary |
| Measured patient secondary outcomes | ||
| 30-s chair-stands test [50] | Number of stands | Pre- and post exercise programme |
| 6-min walk test [51] | Metres | ---“--- |
| Stairs test [52] | Seconds | ---“--- |
| GP- and PT-reported secondary outcome measures | ||
| Knowledge about recommended OA care | 2 items, 5-point scale | Pre- and post-workshop + 6 months post-workshop |
| Attitude towards OA treatment and recommendations | 4 items, 5-point scale | ---“--- |
| Behaviour in OA care (referrals, imaging) | ---“--- | ---“--- |
| Register based data secondary outcome measures | ||
| Number of referrals to secondary care that does not lead to scheduled joint surgery | 0–12 | |
| Number of referrals to MRI for OA assessment | ---“--- | |
| Number of GP referrals for OA patients to PTs at FLSs/private practice | ---“--- | |
| PTs at FLSs/in private practice secondary outcome measures | ||
| Number of discharge reports from PTs at FLSs/ private practice to the referring GP | 0–12 | |
a0 = baseline assessment, the other numbers indicate months after baseline assessment
MRI magnetic resonance imaging, NRS numeric rating scale