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Table 3 Summary of measures to be collected

From: Efficacy of a multimodal physiotherapy treatment program for hip osteoarthritis: a randomised placebo-controlled trial protocol

Primary outcome measures Data collection instrument Collection points
Average pain in past week 100 mm VAS 0, 13, 36 weeks
Physical function in past 48 hours WOMAC Osteoarthritis Index 3.1 Likert version 0, 13, 36 weeks
Secondary outcome measures   
Pain, function, and stiffness HOOS (incorporating WOMAC) 0, 13, 36 weeks
Health-related quality of life Assessment of Quality of Life Instrument version 2 (AQoL II) 0, 13, 36 weeks
Patient's global rating of change overall and for pain and function 7-point ordinal scale 13, 36 weeks
Self efficacy Arthritis Self-efficacy scale 0, 13, 36 weeks
Pain catastrophizing Pain Catastrophizing Scale 0, 13, 36 weeks
Coping strategies Coping Strategies questionnaire 0, 13, 36 weeks
Objective functional performance Timed 40 m walk
Timed stair climb (ascent and descent)
30 second sit-to-stand
0, 13 weeks
Standing balance Step test
4-square step test
0, 13 weeks
Hip range of motion Clinical methods and inclinometer 0, 13 weeks
Hip and knee muscle strength Isometric - isokinetic dynamometer (quadriceps and hamstrings) and instrumented manual muscle tester (hip flexors, extensors, abductors, rotators) 0, 13 weeks
Gait biomechanics (in a subset) 3-dimensional motion analysis system 0, 13 weeks
Other measures   
Physical activity levels Physical Activity Scale for the Elderly (PASE)
Pedometer worn for 7 days
0, 13, 36 weeks
Treatment credibility Treatment Credibility Scale 1,12 weeks
Participant success of blinding Questionnaire 13, 36 weeks
Healthcare consumption and related costs Questionnaire; health system records 0, 5, 9, 13, 36 weeks
Adverse events Participant log-book Throughout
Adherence - treatment session attendance; home exercise or gel application Participant log-book; Therapist treatment records; Questionnaire Throughout