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| Name | Class |
|---|---|
| David M. Katz, M.D. | INDIV |
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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.
The primary aim is to test thee principal hypotheses (n=150):
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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| DQPN Validation | Experimental | 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. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| DQPN Validation | Diagnostic Test | 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 brief User Experience Questionnaire for each dietary assessment method. |
| Measure | Description | Time Frame |
|---|---|---|
| Correlation between DQPN results and FFQ results | The primary outcome is the set of correlation coefficients comparing the DQPN results and the FFQ results | 6 months |
| Measure | Description | Time Frame |
|---|---|---|
| Correlation between DQPN and biomarkers | A secondary outcome is the set of correlation coefficients comparing the DQPN results and the corresponding blood levels of fatty acids, folic acid, and beta-carotene | 6 months |
| Number of minutes spent completing the DQPN and FFQ |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Michael Dansinger, MD | Contact | 617-935-2273 | mdansinger@bostonheartdx.com | |
| David Katz, MD | Contact | dkatz@dqpn.io |
| Name | Affiliation | Role |
|---|---|---|
| Michael Dansinger, MD | Boston Heart Diagnostics | Principal Investigator |
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| ID | Term |
|---|---|
| D001523 | Mental Disorders |
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A secondary outcome is the median number of minutes spent completing the DQPN and the FFQ will be compared |
| 6 months |
| Correlation between FFQ and biomarkers | A secondary outcome is the set of correlation coefficients comparing the FFQ results and the corresponding blood levels of fatty acids, folic acid, and beta-carotene. | 6 months |
| Retest reliability for DQPN | A secondary outcome is the test-retest reliability coefficient (tau-equivalent reliability measurement) for the DQPN | 6 months |