Table 4 Tertiary outcome measures
Tertiary outcome measures | Measurement scale | Time* |
|---|---|---|
Hand pain in which hand | Left/Right/Both | 0, 3, 6 |
Which hand is most painful | Left/Right | 0, 3, 6 |
Hand injury, surgery or injections over past three months | Single question | 3, 6 |
Fatigue | Numeric rating scale (NRS): 0-10 | 0, 3, 6 |
Mental distress (General Health Questionnaire, GHQ-20 [40]) | Bi-modal fashion (0-0-1-1) | 0 months |
Self-reported work ability [41] | 5-point scale | 0, 3, 6 |
Physical activity (International Physical Activity Questionnaire-Short Form, IPAQ [42]) | Mean minutes/week, MET-minutes/week | 0, 3, 6 |
• Vigorous-intensity activity | ||
• Moderate-intensity activity | ||
• Walking | ||
• Sitting | ||
Exercise self-efficacy [43] | 7-point scale | 0, 3, 6 |
Exercise diary (intervention group only) | dd.mm.yy | 0-3 |
• Date | Minutes | |
• Exercise duration | NRS: 0–10 | |
• Pain level post-exercise | Text | |
• Comments | Kilogrammes | |
• Grip strength at group sessions (weeks 2, 3 and 8) | ||
Adverse events (intervention group only, obtained from the exercise diary + telephone follow-up log) | Type, duration | 0-3 |
Direct and indirect costs | ||
Self-reported sick leave over past three months | Number of days | 0, 3, 6 |
Absence from non-paid work over past three months | Number of days | 0, 3, 6 |
Self-reported health-care utilisation over past three months: number of visits to general practitioner, medical specialist, physiotherapist, manual therapist, chiropractor, occupational therapist, psychologist, social worker, nurse at general practice/outpatient clinic, “alternative therapy”, hospitalisation | Number of visits | 0, 3, 6 |
Pharmacology use for hand OA over past three months | Self-reported | 0, 3, 6 |
Medical or technical equipment purchased during the past three months | Self-reported | |
Costs for attending group sessions (only intervention group): distance travelled, transportation method, transportation costs, work absence, need for accompaniment | Self-reported | 0 |
Participant characteristic variables | ||
Age | Birth year | 0 |
Gender | Female/Male | 0 |
Marital status | Married or cohabiting/Separated or divorced/Widowed/Single | 0 |
Education | Lower secondary school/Higher secondary school/University 1–4 years/University >4 years | 0 |
Employment status | Working full time/working part time/not working/student/working full-time in the home/unemployed or seeking work/age retired/disability pension/sick leave | 0 |
Height | Centimetres | 0 |
Weight | Kilogrammes | 0 |
Dominant hand | Left/Right | 0 |
Year of OA diagnosis | Year | 0 |
Fulfilment of ACR criteria for hand OA | Yes/no | 0 |