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Table 1 Trial measures and timing

From: Protocol for SAMS (Support and Advice for Medication Study): A randomised controlled trial of an intervention to support patients with type 2 diabetes with adherence to medication

  Baseline visit Before 8 week visit At 8 week visit After 8 week visit Final visit at 20-weeks
Basic demographics x     
Medication x   x   x
Co-morbidity x     
Clinical measures      
Weight x     x
Blood pressure x     x
HbA1c (Central laboratory) x   x   x
Adherence      
Electronic medication monitor for preceding period    x (50%)   x
Self-report (MARS) Diabetes   x    x
Drug concentrations    x   x
Psychological      
TPB† Direct measures and intention x x   x  
TPB† Indirect measures x x   x  
Time and location of taking medicines      x
Communication with practice nurse      x
Quality of Life      
Short-Form 12‡ x     x
Diabetes Treatment Satisfaction Questionnaire      x
Hypoglycaemia    x   x
  1. 12-Item short form Medical Outcomes Study health survey questionnaire.
  2. Theory of Planned Behaviour.