Validity of Diet Quality Scores in Japanese Adults
Author Information
Author(s): Oono Fumi, Murakami Kentaro, Shinozaki Nana, Kimoto Nana, Masayasu Shizuko, Sasaki Satoshi
Primary Institution: The University of Tokyo
Hypothesis
This study aims to examine the relative validity of three diet quality scores derived from two dietary questionnaires in Japanese adults.
Conclusion
The study found that the Brief-type and Meal-based Diet History Questionnaires can effectively rank individuals' diet quality in Japanese adults.
Supporting Evidence
- The BDHQ and MDHQ showed good ranking ability for DQSJ and DASH scores.
- Correlation coefficients for DQSJ ranged from 0.57 to 0.63.
- The study included a diverse sample from fourteen prefectures in Japan.
Takeaway
Researchers wanted to see if two questionnaires could accurately measure how healthy people's diets are in Japan, and they found that they could do a good job.
Methodology
Participants completed web versions of the BDHQ and MDHQ, followed by 4 non-consecutive days of weighed dietary records.
Potential Biases
Participants may have been more health-conscious than the general population, affecting the results.
Limitations
The sample may not be representative of the general population, and the dietary records may have measurement errors.
Participant Demographics
111 men and 111 women aged 30–76 years, with a mean age of 52.7 years for men and 50.9 years for women.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website