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Table 1 Summary of measures to be collected

From: Addition of telephone coaching to a physiotherapist-delivered physical activity program in people with knee osteoarthritis: A randomised controlled trial protocol

Primary outcome measures Data collection instrument Collection Points
Average pain in past week 11-point numeric rating scale (NRS) 0, 6, 12, 18 months
Physical function in past 48 hours WOMAC Osteoarthritis Index physical function subscale 0, 6, 12, 18 months
Secondary outcome measures   
Average pain on walking in past week 11-point numeric rating scale (NRS) 0, 6, 12, 18 months
Pain in past 48 hours WOMAC Osteoarthritis Index pain subscale 0, 6, 12, 18 months
Perceived change overall 7-point ordinal scale 6, 12 and 18 months
Perceived change in pain 7-point ordinal scale 6, 12 and 18 months
Perceived change in function 7-point ordinal scale 6, 12 and 18 months
Physical activity levels Active Australia Survey 0, 6, 12, 18 months
  Physical Activity scale for the elderly (PASE) 0, 6, 12, 18 months
  7-day ActivPALTM physical activity recording 0, 6 months
Health-related quality of life AQoL2 questionnaire 0, 6, 12, 18 months
Other measures   
Self-reported psychological measures Arthritis self-efficacy scale 0, 6, 12, 18 months
  Arthritis impact scale (AIMS2) 0, 6, 12, 18 months
  Mood, tension and thoughts subscales  
  Pain catastrophising scale (PCS) 0, 6, 12, 18 months
  Coping Strategies questionnaire (CSQ) 0, 6, 12, 18 months
  Depression, Anxiety and Stress scale (DASS) 0, 6, 12, 18 months
  Self-efficacy for physical activity scale 0, 6, 12, 18 months
  Barriers to physical activity scale 0, 6, 12, 18 months
  Benefits of physical activity scale 0, 6, 12, 18 months
  Brief fear of movement scale 0, 6, 12, 18 months
  Self regulation scale 0, 6, 12, 18 months
  Patient Health Questionnaire-9 (PHQ-9) 0, 6, 12, 18 months
Barriers and enablers to home exercises Customised questionnaire 6, 12, 18 months
Adherence to intervention Number of physiotherapy sessions attended During intervention
  Number, timing and duration of telephone calls During intervention
  Number of times home exercises performed 3, 6, 9, 12, 15, 18 months
  in past 2 weeks - questionnaire  
  Self-rated adherence to home exercise 3, 6, 9, 12, 15, 18 months
  Self-rated change in physical activity levels 3, 6, 9, 12, 15, 18 months
  Physiotherapist-rated participant adherence 6 months
  Telephone coach-rated participant adherence 6 months
Adverse events and harms Log sheets 3, 6, 9, 12, 15, 18 months
Use of health services/co-interventions Log sheets 3, 6, 9, 12, 15, 18 months
Willingness to pay Questionnaire 6, 12, 18 months
Height Collected by physiotherapist 0 months
Weight & waist circumference Collected by physiotherapist 0, 6 months
Descriptive information Questionnaire 0 months