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Summary of Data Sources

Basic Characteristics of Data Source Food Balance Sheets (FBS) Household Consumption and Expenditure Surveys (HCES) Demographic and Health Surveys (DHS) 24-Hour Recall (24HR) Food Frequency Questionnaire (FFQ) Weighed Food Record (WFR)
Frequency of collection Annual
3 yr avrg
~3-5 yrs ~5 yrs Flexible Flexible Flexible
Coverage 245 (countries/ territories) 125 90 N/A N/A N/A
Unit of observation Country Household Mother-Child Dyads Individual Individual Individual
Associated cost None None None $$ $ $$$
Data is publically available Yes Yes Yes Conditional Conditional Conditional
Nationally representative Yes Yes Yes Conditional Conditional Conditional
Able to disaggregate data to target population sub-groups No Yes Yes Yes Yes Yes
Food composition database is typically required No No No Yes No Yes
Seasonality is considered  in survey design No No No Conditional Conditional Conditional
Food lists are disaggregated sufficiently for conversion to nutrients Yes Yes No Yes Yes Yes
Potentially fortifiable, or already fortified, food vehicles are captured No Yes No Yes Yes Yes
Socio-economic status and food consumption are captured in the same survey No Yes Yes No No No