Form SU - Substance Use
Substance Use_Tobacco
What is/was the category of the substance (used)?
Has the subject ever used tobacco?	Current  Previous  Never
What [is/was] the [name/type] of (the) substance used?	Choose Cigarettes e-Cigarettes Cigars Pipe Smokeless tobacco
What was the amount?
What was the unit?	Choose Pack Cigarette Cigar Milliliter Pipe Cartridge Pouch
What [is/was] the frequency?	Choose Daily Once Weekly Monthly Per Year
What was the start date of use?	01 Jan 2000
What was the end date of use?	01 Jan 2000

* Mandatory field