Online Validation of Dietary Intake Food Frequency Questionnaire Over Four Weeks, and Electronic Device Use Questionnaire Over Eight Weeks.

CompletedOBSERVATIONAL
Enrollment

183

Participants

Timeline

Start Date

August 18, 2020

Primary Completion Date

October 1, 2022

Study Completion Date

October 1, 2022

Conditions
Lutein and Zeaxanthin Dietary IntakeAge Related Macular DegenerationBlue Light ExposureElectronic Device Use
Interventions
OTHER

Weekly Food Frequency Questionnaire

A purpose designed 91-item questionnaire to measure frequency of consumption of a selection of L/Z containing foods over the prior 7 days.

OTHER

Monthly Food Frequency Questionnaire

A purpose designed 95-item questionnaire completed at visit 1 to measure frequency of consumption of a selection of L/Z containing foods over the prior month.

OTHER

24-Hour Diet Recall

the diet recall via the online Automated Self-Administered 24-Hour Dietary Assessment Tool (ASA24®) takes approximately 25 minutes to complete, and investigates food and beverages consumed in the prior 24-hours.

OTHER

Electronic Device Use Questionnaire

1\. The EDUQ: A 22-item questionnaire that takes 20 minutes to complete, and measures participant demographic information (weight, height, age, highest level of education, occupational status, post-code and country of residence), usual daily ED use from present up to 20 years ago, occupational influence to use, and differences to ED use between a weekend and weekday.

OTHER

24-Hour Electronic Device Use Diary

Participants asked to record their electronic device use in hours and minutes over 24 hours.

Trial Locations (1)

4067

University of Queensland, Saint Lucia

All Listed Sponsors
lead

The University of Queensland

OTHER

NCT04779411 - Online Validation of Dietary Intake Food Frequency Questionnaire Over Four Weeks, and Electronic Device Use Questionnaire Over Eight Weeks. | Biotech Hunter | Biotech Hunter