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Process evaluation of a clinical preventive nutrition intervention
M K Hunt1, R Lobb, H K Delichatsios
1Center for Community-Based Research, Dana-Farber Cancer Institute, 44 Binney Street, Boston, MA 02115, USA.
Preventive Medicine
|August 9, 2001
Summary
A clinical nutrition intervention effectively increased fruit and vegetable intake. The primary care provider diet-health endorsement was key to the intervention
Area of Science:
- Nutrition Science
- Preventive Medicine
- Health Behavior Change
Background:
- Investigated the feasibility of a clinical nutrition intervention to boost fruit and vegetable consumption.
- Examined the link between intervention process variables and study outcomes.
Purpose of the Study:
- To assess the effectiveness of a clinical preventive nutrition intervention.
- To identify key components contributing to intervention success in increasing fruit and vegetable intake.
Main Methods:
- Randomized trial with six practice sites in a managed care organization.
- Adult participants received tailored feedback, education materials, PCP endorsement, and counseling calls.
- Enrollment rates were 41% and 44% in intervention and control groups, respectively.
Main Results:
- 71% of participants and PCPs discussed diet-health relationships.
- 57% of participants and 62% of PCPs discussed the full diet-health endorsement.
- The complete endorsement, not duration, correlated with improved health outcomes.
Conclusions:
- Brief primary care provider (PCP) diet-health endorsements significantly contributed to intervention effectiveness.
- The findings highlight the role of PCPs in promoting dietary changes.
- Feasibility data support the integration of nutrition interventions into routine primary care.