Primary outcome measures | Data collection instrument |
---|---|
Average overall pain in past week | 11-point numerical rating scale (NRS) |
Physical function in past 48 hours | Western Ontario McMaster Universities (WOMAC) Osteoarthritis Index 3.1 Likert version |
Secondary outcome measures | Â |
Average pain on i) walking and ii) standing in past week | 11-point NRS |
Pain over past 48 hours | WOMAC Osteoarthritis Index 3.1 Likert version |
Average restriction to daily activity in past week | 11-point NRS |
Participant global rating of change in i) pain ii) physical function and iii) overall. | 5-point ordinal scales (12 weeks and 12 months) |
Health-related quality of life | Assessment of Quality of Life Instrument (AQoL II) |
12-item Short Form Health Survey (SF-12) | |
Other measures | Â |
Psychosocial parameters | Arthritis Self-Efficacy Questionnaire |
 | Illness Perception Questionnaire Revised (IPQ-R) |
 | Medical Outcomes Study (MOS) Social Support Survey |
9-item Patient Health Questionnaire (PHQ-9) | |
Revised Health Hardiness Inventory | |
Physical activity | Physical Activity Scale for the Elderly (PASE) |
Use of health care/home assistance and work absences | Log book (retrospectively for prior 4 weeks) |
Adverse events | Open-ended questioning (12 weeks) |
Treatment session attendance | General practitioner treatment records (12 weeks) |