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Table 1 Outcome measures

From: Improving the care for people with acute low-back pain by allied health professionals (the ALIGN trial): A cluster randomised trial protocol

Outcome
(outcome category)
Data collection method Outcome assessment period Source Level data collected at
Inference intended at the practitioner level
X-ray referral
(practitioner behaviour) 1
Checklist completed by practitioner 3 to 4 months post-symposium Practitioner Patient
Advice to stay active
(practitioner behaviour)
Checklist completed by practitioner 3 to 4 months post-symposium Practitioner Patient
Imaging referral excluding x-ray
(practitioner behaviour)
Checklist completed by practitioner 3 to 4 months post-symposium Practitioner Patient
Advised bed rest
(practitioner behaviour)
Checklist completed by practitioner 3 to 4 months post-symposium Practitioner Patient
X-ray referral (file audit)
(practitioner behaviour)
Clinical file audit 0 to 7 months post-symposium Practitioner case notes Patient
Imaging referral excluding x-ray (file audit)
(practitioner behaviour)
Clinical file audit 0 to 7 months post-symposium Practitioner case notes Patient
Intention to adhere to CPG recommendations: Questionnaire Baseline, 4 months post-symposium Practitioner Practitioner
   X-ray referral  
   Imaging referral excluding x-ray  
   Advice to stay active  
   Bed rest advice  
(predictor practitioner behaviour)  
Behavioural constructs2 (e.g., knowledge, beliefs about capabilities)
(predictor practitioner behaviour)
Questionnaire Baseline, 4 months post-symposium Practitioner Practitioner
Inference intended at the patient level
LBP specific disability1
(health outcome)
Questionnaire 3 months post-onset acute LBP episode Patient Patient
Pain severity
(health outcome)
Questionnaire 3 months post-onset acute LBP episode Patient Patient
X-ray occurred
(health behaviour)
Questionnaire 3 months post-onset acute LBP episode Patient Patient
Fear-avoidance beliefs
(predictor health behaviour)
Questionnaire 3 months post-onset acute LBP episode Patient Patient
Health-related Quality of Life
(health outcome)
Questionnaire 3 months post-onset acute LBP episode Patient Patient
Health Service Utilisation and Productivity Gains/Losses Questionnaire 3 months post-onset acute LBP episode Patient Patient
  1. Table adapted from McKenzie et al. [33]. See Additional File 2 - 'ALIGN outcome definitions' for details of outcome definitions.
  2. 1Primary outcome. 2Table 2 provides details of the behavioural construct domains.