Research
Energy balance
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.
The FFQ can provide valid estimates of nutrient intake compared to 24-hour recalls.
StrongSupportsmedium confidence
Correlation coefficients between energy-adjusted nutrient intakes, measured by diet recalls, and the first FFQ ranged from 0.12 for polyunsaturated fatty acids to 0.67 for saturated fatty acids.
Why this rating
The study design includes statistical analysis of validity.
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
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