Differences in reported food frequency by season of questionnaire administration: the 1987 National Health Interview Survey.

@article{Subar1994DifferencesIR,
  title={Differences in reported food frequency by season of questionnaire administration: the 1987 National Health Interview Survey.},
  author={Amy F. Subar and Carolin M. Frey and Linda C. Harlan and L H Kahl{\'e}},
  journal={Epidemiology},
  year={1994},
  volume={5 2},
  pages={
          226-33
        }
}
We assessed seasonal reporting bias in a 59-item food frequency questionnaire (FFQ) administered throughout 1 year using data from the 1987 National Health Interview Survey (N = 20,143 adults). Few meaningful differences were found in the proportion of individuals reporting rarely or never consuming a food by season of questionnaire administration. Seasonal reporting bias is evident in FFQs, however, and appears to be due to reporting most recent consumption. Using gender-specific median… CONTINUE READING

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