Comparing Dietary Cost Estimation Methods
Author Information
Author(s): Murakami Kentaro, Sasaki Satoshi, Takahashi Yoshiko, Okubo Hitomi, Hirota Naoko, Notsu Akiko, Fukui Mitsuru, Date Chigusa
Primary Institution: University of Tokyo
Hypothesis
How comparable are the monetary costs of dietary energy estimated from weighed dietary records and a self-administered diet history questionnaire?
Conclusion
The study found reasonable comparability of monetary cost of dietary energy across dietary assessment methods.
Supporting Evidence
- The study compared monetary costs of dietary energy from two different dietary assessment methods.
- Pearson correlations indicated reasonable agreement between the two methods.
- Mean differences in dietary cost estimates were within 10%.
Takeaway
This study looked at how much people spend on food using two different methods and found that both methods give similar results.
Methodology
The study involved 92 women and 92 men completing both a diet history questionnaire and weighed dietary records over a year.
Potential Biases
Potential measurement errors in both dietary assessment methods could affect the results.
Limitations
The study lacks true measures of monetary diet cost and may not be generalizable due to the specific population studied.
Participant Demographics
Participants were 92 Japanese women aged 31-69 and 92 Japanese men aged 32-76.
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