AGE WHEN FIRST USED ANY SMOKLESS TOB - RECODE
NOTE: The variables SLTTRY, SLTYFU, SLTMFU, SLTREC, and SLT30BRN are
recoded variables for the use of any smokeless tobacco product (either
chewing tobacco or snuff). These variables were recoded from CHEWTRY,
SNUFTRY, CHEWYFU, SNUFYFU, CHEWMFU, SNU... (view details)
Taken from: National Survey on Drug Use and Health: 10-Year Substate R-DAS (2002 to 2011).