Dietary Quality Photo Navigation: A Preliminary Biomarker Validation Study and Comparison With a Food Frequency Questionnaire
试验速览
- 阶段
- 不适用
- 发起方
- 入组人数
- 150
- 主要终点
- Correlation between DQPN results and FFQ results
研究概览
简要总结
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.
详细描述
The primary aim is to test thee principal hypotheses (n=150):
- 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.
- 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.
- 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.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Diagnostic
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •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
排除标准
- •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).
结局指标
主要结局
Correlation between DQPN results and FFQ results
时间窗: 6 months
The primary outcome is the set of correlation coefficients comparing the DQPN results and the FFQ results
次要结局
- Retest reliability for DQPN(6 months)
- Correlation between DQPN and biomarkers(6 months)
- Number of minutes spent completing the DQPN and FFQ(6 months)
- Correlation between FFQ and biomarkers(6 months)
研究者
Michael Dansinger
Principal Investigator
Boston Heart Diagnostics