Food record

Report
ALSPAC diet resource
Dr Pauline Emmett
Senior Research Fellow
Nutritionist & Dietitian
The ALSPAC cohort




14,000 pregnant women
EDD April 1991 to Dec 1992
Living in Avon in South West England
Information collected by
•
•
•
•
Self-completion questionnaire
Medical records
Biological samples
Hands-on measurements
Diet in ALSPAC
The assessment of diet has
been an integral part of
ALSPAC from the beginning
Dietary methodology
 Food frequency questionnaires
• Mother, father & child
 Age at introduction of foods and
drinks
 Eating habits & attitudes to food
• Mother & child
 Food record
• Child
Food frequency
questionnaire
 Asked about food eaten nowadays
 Gave a list of 43 - 54 foods to tick
•
•
•
•
•
•
meat – 5-8 separate questions
fish – 3-5 separate questions
vegetables - 7 separate questions
fruit - 3 separate questions
breakfast cereals - 3 separate questions
and so on
0
0.5
2
5.5
10
Foods eaten every day
 Asked about types of some foods
• Bread – e.g white, wholemeal etc
• Milk – e.g. full fat, semi-skimmed
• Spreading fats – e.g. butter, flora
 Asked about amounts of some foods
• number of slices of bread
• number of cups of tea and coffee
Uses of FFQ data
 Dietary Patterns
• Uses FFQ answers directly
• Kate Northstone has done a lot of work on these
 Calculation of nutrient intakes
•
•
•
•
List of appropriate foods
Appropriate portions sizes
Appropriate nutrient data
Very much an estimate
FFQs with nutrient data
 Mothers
• 32 weeks pregnancy, 4 years later
 Partners
• Partial during the pregnancy, 4 years later
 Children
• 3 years, 4 years, 7 years and 9 years
Food Records
 3-day unweighed food record
 sent in advance with instructions
 When possible checked with
carer/child at clinic
 coded using British food tables
 all records checked, outliers
rechecked
Food records collected
Parental completion
 10% random sub-sample (CIF)
•
•
•
•
•
4 months (1 day only) - 933 infants
8 months - 1178 infants
18 months - 1026 children
3.5 years - 863 children
5 years – 750 children
 Whole cohort (including CIF)
•
7 years – 7230
Food records used at age 10
& 13 years





3-days records
Completed by child
Parental help
Clinic interview
Over 6000 each
time
 Nutrients & food
groups calculated
Sample Diary Page
Further information
• Please ask if you would like
–
A paper copy or power point
• Web details
http://www.bristol.ac.uk/alspac/sci-com/quests/
http://www.bristol.ac.uk/alspac/documents/nutrition-2.pdf

similar documents