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Why are there fewer outcomes some state estimates than for others?

NSDUH underwent a partial redesign in 2015, so some measures in 2015 are not comparable to their counterparts in 2014. Since NSDUH state estimates pool 2 years of data, estimates for measures that were not comparable between the 2 years could not be produced for this publication of state estimates.

SAMHSA will produce a full set of state outcomes when 2 years of comparable data are available, which will be the 2015-2016 state estimates that will be released in December 2017. For more information on the 2015 partial redesign, see:

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