Dietary Quality Photo Navigation (DQPN) Preliminary Validation Study

Boston Heart Diagnostics

Status: Unknown

Conditions: Nutrient; Excess; Lifestyle-related Condition

Treatments: Diagnostic Test: DQPN Validation

Study type: Interventional

Funder types: Industry

Identifiers

NCT03661931

BHD-005

Details and patient eligibility

About

The purpose of this research project is to conduct a preliminary validation study of the Diet Quality Photo Navigation (DQPN) method of dietary intake assessment. In 150 adults, dietary intake as estimated by the DQPN will be compared to dietary intake as estimated by a food frequency questionnaire (FFQ) and with blood levels of fatty acids, folic acid, and beta-carotene as biomarkers of dietary intake.

Full description

The primary aim is to test thee principal hypotheses (n=150):

1. There will be statistically significant correlations between blood levels of fatty acids/folate/beta-carotene and their corresponding levels of dietary intake as estimated by the DQPN.
2. There will be statistically significant correlations between the DQPN and FFQ methods of dietary intake assessment. This includes individual dietary components as well as overall dietary quality and disease risk assessments.
3. User experience surveys will demonstrate that the DQPN can be completed more quickly and more enjoyably than the FFQ.

In addition, investigators will assess whether blood levels of fatty acids/folate/beta-carotene are similarly associated with the DQPN method and the FFQ method, and will measure the test-retest reliability of the DQPN method.

Enrollment: 150 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Clinical provider has ordered fasting Boston Heart Fatty Acid Balance and participation in the Boston Heart Lifestyle Program as part of clinical practice.
• Willing to fill out Food Frequency Questionnaire
• Willing to complete DQPN Diet IDTM (on-line), and to repeat that 1 week later
• Willing to complete user experience surveys about each dietary assessment method

Exclusion criteria

• Taking fatty acid or vitamin supplements (such as fish oil capsules, or multivitamin tablets)
• Following a diet outside the capabilities of the DQPN cannot be included in this study. The vast majority of eating styles are within the assessment capabilities of the DQPN (Standard American, Low-fat, Mediterranean, Pescatarian, Flexitarian, Low-carb, DASH, AHA, TLC, MIND, Vegetarian, Vegan, Paleo, Southern).

Trial design

Primary purpose: Diagnostic

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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150 participants in 1 patient group

DQPN Validation

Experimental group

Description:

We are planning to recruit 150 individuals who are patients in the Boston Heart Lifestyle Program and are already having fatty acids measured as part of clinical care, and ask them to complete the DQPN, FFQ, and a User Experience Questionnaire for each dietary assessment method.

Treatment:

Diagnostic Test: DQPN Validation