Survey Text

2000
1992
1987
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2000
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NAC.250

How many months of the PAST 12 did you take vitamin C?
VITCM
(12) All of them (NAC.260)
(01-12) Number of months (NAC.260)
(97) Refused (NAC.270)
(99) Don't know (NAC.270)

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1992
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b. In how many of the past 12 months did you take vitamin C?

12[] All of them
Number of months ____

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1987

No questionnaire text is available for this sample.