•30, 546 sample addresses
•
•23, 486 positive responders
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•6,445 eligible households
•
•2172 initially selected Eligible sample 100%
•
•1632 completed interview Responding sample 75%
•
•1275 completed dietary record Diary sample 59%
•
•986 provided blood sample 45%
•
•1115 provided urine sample 51%