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Energy balance
Intraclass correlation coefficients for nutrient intakes assessed by the FFQ ranged from 0.38 for cholesterol to 0.54 for crude fiber.
The FFQ shows acceptable reproducibility for various nutrients.
StrongSupportsmedium confidence
Intraclass correlation coefficients for nutrient intakes, assessed by questionnaires, administered one year apart, ranged from 0.38 for cholesterol to 0.54 for crude fiber.
Why this rating
The study design includes statistical analysis of reproducibility.
Source
Validity and reproducibility of a food frequency questionnaire to assess dietary intake of women living in Mexico City
Mauricio Hernández‐Ávila et al. · Salud Pública de México · 1998
DOI 10.1590/s0036-36341998000200005
other · n=134Cited 489×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- The semi-quantitative food frequency questionnaire (FFQ) is reproducible and provides a useful estimate for categorizing individuals by level of past nutrient intake.Strong
- Correlation coefficients between energy-adjusted nutrient intakes from diet recalls and the first FFQ ranged from 0.12 for polyunsaturated fatty acids to 0.67 for saturated fatty acids.Strong
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