Theodora Mouratidou|Fiona Ford|Robert Fraser
Validation of a food-frequency questionnaire for use in pregnancy
Jessop Hospital|University of Sheffield|Jessop Hospital|University of Sheffield|Jessop Hospital|University of Sheffield
abstract objectives part ongoing project develop nutritional screening tool evaluated performance semiquantitative foodfrequency questionnaire ffq terms validity sheffield caucasian pregnant population using two different statistical approaches correlation coefficient limits agreement loa ffq designed specifically pregnant women previously used largescale study design validation study setting communitybased field study general population pregnant women booked first antenatal appointment jessop wing royal hallamshire hospital sheffield uk subjects one hundred twentythree women different socioeconomic status aged 17 43 years provided complete dietary data results validity ffq tested series two 24hour recalls expected intakes examined nutrients except iodine carotene vitamin e biotin vitamin c alcohol higher determined ffq determined 24hour recall pearsons correlation coefficient two methods ranged 019 added sugar zinc 047 englyst fibre loa broader nutrients eg protein southgate fibre alcohol increasing lack agreement two methods identified higher dietary intakes conclusions ffq gave useful estimates nutrient intakes caucasian pregnant women appears valid tool categorising pregnant women according dietary intake ffq performed well nutrients acceptable agreement 24hour recall