2007 National Survey on Drug Use & Health: National Results A
variety of surveys and data systems other than the National
Survey on Drug Use and Health (NSDUH) collect data on substance
use and mental health problems. It is useful to consider the
results of these other studies when discussing NSDUH data. This
appendix briefly describes several of these other data systems
and presents selected comparisons with NSDUH results. In
addition, this appendix describes surveys of populations not
covered by NSDUH. Survey descriptions are presented in
alphabetical order. When considering the information presented
here, it is important to understand the methodological
differences between the different surveys and the impact that
these differences could have on estimates of the presence of
substance use and mental health problems. Several studies have
compared NSDUH estimates with estimates from other studies and
have evaluated how differences may have been affected by
differences in survey methodology (Gfroerer, Wright,