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Targeting Social Determinants to Improve Chronic Kidney Disease Care

This study has been completed.
ClinicalTrials.gov Identifier:
First Posted: May 23, 2012
Last Update Posted: July 29, 2014
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Kerri Cavanaugh, Vanderbilt University

The primary research goals of this application are to characterize social factors including health literacy and numeracy skills of CKD patients and examine associations with knowledge, self-efficacy, self-care behaviors, and clinical outcomes, and to examine the impact of an efficient interactive educational intervention to facilitate patient-provider communication. The investigators will accomplish these goals by executing a cluster-randomized controlled trial and performing detailed analysis of baseline measures. The specific aims of this study are:

Specific Aim 1: Determine the association of social factors with patient kidney knowledge, self-efficacy, participation in self-care behaviors, and clinical outcomes in moderate to advanced CKD.

Hypothesis: In patients with CKD, low health literacy and numeracy is common and associated with older age, non-white race, fewer years of education, lower socioeconomic (income) status, less kidney knowledge, lower self-efficacy of self-care, and less adherence with medication and diet self-care recommendations. Low literacy/numeracy is also associated with higher blood pressures, more proteinuria, and more severe dysfunction of renal clearance.

Specific Aim 2: Evaluate the impact of a tailored literacy-sensitive educational tool used cooperatively by physicians and patients to improve self-care and outcomes in CKD.

Hypothesis: Utilization of a concise literacy-sensitive physician-delivered educational tool will be feasible and associated with higher patient kidney knowledge, self-efficacy of self-care and greater adherence to medication and nutrition recommendations compared to usual care.

Condition Intervention
Chronic Kidney Disease Behavioral: interactive educational intervention

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Targeting Social Determinants to Improve Chronic Kidney Disease Care

Resource links provided by NLM:

Further study details as provided by Kerri Cavanaugh, Vanderbilt University:

Primary Outcome Measures:
  • self-care of Chronic Kidney Disease [ Time Frame: baseline and 6 months ]

    Change from baseline in the following surveys/questionaires at 6 months

    • Morisky 8-Item Survey
    • Frequent Food Questionaire

Secondary Outcome Measures:
  • patient understanding of kidney disease and their disease status [ Time Frame: baseline and 6 months ]

    Change from baseline in the following surveys/questionaires at 6 months

    • Kidney Awareness & Knowledge Survey
    • Perceived Kidney Self-Management Scale
    • Kidney Disease Self-Management Behaviors

Enrollment: 273
Study Start Date: May 2012
Study Completion Date: June 2013
Primary Completion Date: June 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: interactive educational intervention
Physicians will use an interactive educational worksheet during the standard-of-care clinic visit.
Behavioral: interactive educational intervention
Use of a concise, literacy-sensitive, physician-led, educational interaction with the patient.
No Intervention: control group
Physicians will conduct the standard-of-care clinic visit as usual.


Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Ages Eligible for Study:   18 Years to 80 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Receiving care in the Vanderbilt General Nephrology Clinic for at least 1 prior visit past 12 months;
  • Serum creatinine available in the medical record in the last 12 months demonstrating Chronic Kidney Disease (eGFR<60mls/min);
  • Age 18-80 years;
  • English-speaking.

Exclusion Criteria:

  • Pre-existing diagnosis of significant dementia or psychosis as determined by primary provider and documented in the medical record;
  • Corrected visual Acuity >60/20 using a Rosenbaum Pocket Vision Screen;
  • Patient receives dialysis or has a functional kidney transplant.
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01604577

United States, Tennessee
Vanderbilt University Medical Center
Nashville, Tennessee, United States, 37232
Sponsors and Collaborators
Vanderbilt University
Principal Investigator: Kerri Cavanaugh, MD Vanderbilt University
  More Information

Responsible Party: Kerri Cavanaugh, Assistant Professor, Vanderbilt University
ClinicalTrials.gov Identifier: NCT01604577     History of Changes
Other Study ID Numbers: 120595
First Submitted: May 21, 2012
First Posted: May 23, 2012
Last Update Posted: July 29, 2014
Last Verified: July 2014

Keywords provided by Kerri Cavanaugh, Vanderbilt University:
health literacy
health numeracy

Additional relevant MeSH terms:
Kidney Diseases
Renal Insufficiency, Chronic
Urologic Diseases
Renal Insufficiency