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Table 1 Data collection schedule

From: Technology-Intensified Diabetes Education Study (TIDES) in African Americans with type 2 diabetes: study protocol for a randomized controlled trial

Questionnaires and measurements

Screening visit

Baseline visit

3-month visit

6-month visit

9-month visit

12-month visit

Primary outcome measure

      

Glycosylated hemoglobin A1c

X

 

X

X

X

X

Secondary outcome measures

      

Blood pressure

 

X

X

X

X

X

Quality of life (12-item Short-Form Health Survey; SF-12)

 

X

X

X

X

X

Resource utilization/cost

 

X

X

X

X

X

Process measures

      

Diabetes knowledge questionnaire

 

X

X

X

X

X

Knowledge about diabetes (The Diabetes Study of Northern California survey; DISTANCE)

 

X

X

X

X

X

Diabetes education (Behavioral Risk Factor Surveillance System; BRFSS)

 

X

X

X

X

X

Diabetes empowerment scale

 

X

X

X

X

X

Behavioral skills (Summary of Diabetes Self-Care Activities; SDSCA)

 

X

X

X

X

X

Medication adherence

 

X

X

X

X

X

Diabetes fatalism

 

X

X

X

X

X

Covariates/self-report measures

      

Patient demographics

X

     

Social support

 

X

X

  

X

Health literacy

 

X

X

  

X

Depression (Patient Health Questionnaire-9; PHQ-9)

 

X

X

  

X

Diabetes distress (Diabetes Distress Scale; DDS-2)

 

X

X

  

X

Delayed discounting (Quick Delay Questionnaire; QDQ)

 

X

X

  

X

Medical comorbidity (chronic health conditions, BRFSS)

 

X

X

  

X

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Trials

ISSN: 1745-6215