Recall errors in a weekly survey of diarrhoea in Guatemala: determining the optimal length of recall.

@article{Zafar2010RecallEI,
  title={Recall errors in a weekly survey of diarrhoea in Guatemala: determining the optimal length of recall.},
  author={Syed Nabeel Zafar and S P Luby and Carlos Mendoza},
  journal={Epidemiology and infection},
  year={2010},
  volume={138 2},
  pages={264-9}
}
We measured the recall error, optimal recall length and factors associated with diarrhoea in a weekly survey. Data was taken from a year-long randomized controlled trial in which characteristics of diarrhoeal episodes were recorded weekly. We labelled the recall period as days 1-6; day 1 being the day before the visit. Recall error was the percentage difference between the number of episodes reported to begin on a particular day and the mean for days 1 and 2. Generalized estimating equations… CONTINUE READING

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