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Bronx A1c: Bring it Down for Health

Albert Einstein College of Medicine logo

Albert Einstein College of Medicine

Status

Completed

Conditions

Type 2 Diabetes

Treatments

Behavioral: telephonic

Study type

Interventional

Funder types

Other
NIH

Identifiers

NCT00797888
2007-271
R18DK078077 (U.S. NIH Grant/Contract)

Details and patient eligibility

About

To address and reduce population-attributable risk due to elevated HbA1c, the New York City Department of Health and Mental Hygiene (DOHMH) developed an innovative HbA1c registry, which requires all major laboratories to report HbA1c results electronically. We propose to utilize this registry to conduct a randomized controlled trial addressing the following specific aims: 1) to evaluate the incremental effect of a tiered and tailored, patient-centered telephone intervention, in English and Spanish, on the mean HbA1c levels beyond that achieved with print materials mailed to patients and providers by the DOHMH registry intervention; 2) determine what patient demographic and psychosocial factors mediate the effect of the interventions; and 3) provide estimates of implementation costs of the tiered, tailored telephone intervention for comparison with the print intervention. The study outcome will be change in HbA1c values from the registry records from baseline to one-year post-randomization. A total of 941 individuals with diabetes will be needed to provide 83% power to detect a statistically significant difference (p<0.05) between groups of at least 0.3% in absolute HbA1c. Intervention cost data will be evaluated for translation of findings and scalability. At study end, we will know the extent to which this intervention will improve metabolic control in a low-income, multi-ethnic sample who are part of the DOHMH HbA1c registry in the South Bronx, New York. These findings will inform public health policies and practices in New York City, as well as other urban areas throughout the nation.

Full description

Metabolic control of diabetes, measured by hemoglobin A1c (HbA1c), reduces the risk of microvascular complications. Health care providers frequently do not meet standards for managing HbA1c and individuals with diabetes are often not aware of their HbA1c values. To address these issues and reduce population-attributable risk due to elevated HbA1c, the New York City Department of Health and Mental Hygiene (DOHMH) developed an innovative HbA1c registry, which requires all major laboratories to report HbA1c results electronically. We propose to utilize this registry to conduct a randomized controlled trial addressing the following specific aims: 1) to evaluate the incremental effect of a tiered and tailored, patient-centered telephone intervention, in English and Spanish, on the mean HbA1c levels beyond that achieved with print materials mailed to patients and providers by the DOHMH registry intervention; 2) determine what patient demographic and psychosocial factors mediate the effect of the interventions; and 3) provide estimates of implementation costs of the tiered, tailored telephone intervention for comparison with the print intervention. The individual is the unit of sampling, assignment and analysis. After eligibility is assessed and informed consent is obtained by telephone, the individual will be randomly assigned to one of the two groups. The patient telephone intervention will focus on collaborative problem solving for resolving barriers to medication adherence, improving lifestyle behaviors, and communicatiing effectively with their providers. The print materials from the DOHMH will communicate HbA1c results to patients and their providers, with strategies to improve them. The study outcome will be change in HbA1c values from the registry records from baseline to one-year post-randomization. A total of 941 individuals with diabetes will be needed to provide 83% power to detect a statistically significant difference (p<0.05) between groups of at least 0.3% in absolute HbA1c. Psychosocial data on depression, health behaviors, and risk perceptions will be collected by telephone. Intervention cost data will be evaluated for translation of findings and scalability. At study end, we will know the extent to which this intervention will improve metabolic control in a low-income, multi-ethnic sample who are part of the DOHMH HbA1c registry in the South Bronx, New York. These findings will inform public health policies and practices in New York City, as well as other urban areas throughout the nation.

Enrollment

941 patients

Sex

All

Ages

18 to 85 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Subjects will be those patients with diabetes who speak English and/or Spanish and reside in the South Bronx.
  • Subjects will be adults, > 18 years, with diabetes, who become part of the NYC registry by virtue of having a reported HbA1c >7% to the DOHMH.
  • The sampling frame for this study comprises virtually all adults with diabetes in the South Bronx.

Exclusion criteria

  • Age < 18 years
  • A1c < = 7 %
  • Refuses informed consent and HIPAA consent
  • Cognitive dysfunction as assessed by telephone
  • Does not read or speak English or Spanish
  • No diabetes

Trial design

Primary purpose

Supportive Care

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

941 participants in 2 patient groups

Telephonic
Experimental group
Description:
Tailored telephonic intervention to improve HbA1c for participants in the diabetes registry
Treatment:
Behavioral: telephonic
Standard registry
Active Comparator group
Description:
People with diabetes who are in the A1c registry may receive letters from the DOHMH to promote improved A1c and also give lists of bronx resources for healther foof and activites
Treatment:
Behavioral: telephonic

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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