NCT03292055

Food Frequency Questionnaire (FFQ) for Coronary Heart Disease (CHD) Patients

Evaluation of the Psychometric Properties of a Food Frequency Questionnaire Developed for Patients With Coronary Heart Disease in Northern China

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 235 (actual)
• Sponsor: Chinese University of Hong Kong · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

This study aims to evaluate the psychometric properties of a newly developed FFQ specified for northern Chinese CHD and their high risk patients (CHD-FFQ). The psychometric properties include test-retest reliability, content validity, convergent validity, discriminant validity, concurrent validity and predictive validity. Particularly, this study will measure the physiological indicators, including plasma lipid profile (i.e. TG, TC, HDL-C, LDL-C), BG, BP and BMI twice at baseline and the end. The level of these physiological indicators will be compared with the fat intake measured by the CHD-FFQ, i.e. the baseline intake to test its convergent validity. It is also expected to predict the diet-related progression of CHD risks among high-risk individuals, i.e. patients with two or more CHD risk factors as following: raised fasting blood glucose (BG) level, increased blood pressure (BP), increased triglycerides (TG), decreased HDL-Cholesterol (HDL-C), increased LDL-Cholesterol (LDL-C), smoking and central obesity (International Diabetes Federation, 2015). In addition, this study will provide the FFQ's concurrent validity in assessing the intake of energy and nutrients against the CDC-FFQ. Moreover, whether the FFQ could detect the known differences in energy intake between men and women will be established for its discriminant validity.

Conditions

• Coronary Heart Disease

Timeline

• Start date: 2017-01-13
• Primary completion: 2017-12-15
• Completion: 2017-12-15
• First posted: 2017-09-25
• Last updated: 2018-01-25

Locations

2 sites across 1 country: China