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Table 1 Variables and measurement instruments

From: Effect of depression on mortality and cardiovascular morbidity in type 2 diabetes mellitus after 3 years follow up. The DIADEMA study protocol

Endpoint Measuring instrument Sources Baseline Year 1 Year 2 Year 3
Cardiovascular events eCRF completed with the CCR General practitioners
Mortality and cause of death Death certificate
Family reported
General practitioners, National Death Index
Interview by psychologist
Major depressive disorder MINI Interview by psychologist  
Generalized anxiety disorder MINI Interview by psychologist  
Sociodemographic variables Self-report questionnaire Interview by psychologist    
Personal health habits Self-report Interview by psychologist
Anthropometric variables eCRF completed with the CCR General practitioners
Comorbidity and complications eCRF completed with the CCR General practitioners
Laboratory results eCRF completed with the CCR General practitioners
Treatment eCRF completed with the CCR General practitioners
Sleep quantity Self-report Interview by psychologist
Sleep quality AIS Interview by psychologist
Personal and family history of psychiatric disorder Self-report Interview by psychologist    
  CCR General practitioners
Social support First item of RSE Interview by psychologist  
HRQoL SF-12 Interview by psychologist  
  1. eCRF: electronic case report forms; CCR: computerized clinical records; MINI: Mini-International Neuropsychiatric Interview; AIS: Athens Insomnia Scale ; SF-12: Short-Form Health Survey.