Instrument Variable Name: SELNDT
Question Text:

2 of 2
*Enter time period for days taking selenium.

1 Days per week
2 Days per month
3 Other
7 Refused
9 Don't know

Universe Text: Sample adults 18+ who have taken selenium at least one day a month in the last year
Skip Instructions:

SELNDT='1' AND ( If SELNDN ge 8 AND le 29), then goto ERR1_SELNDT.
else
(1-3,R,D) [goto HERBSUPP]