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2004 State Estimates of Substance Use
(from the 2003-2004 National Surveys on Drug Use & Health)

bulletNational data      bulletState level data       bulletMetropolitan and other subState area data

Appendix A Equation - The log-odds ratio, lor sub s and a, is defined as the logarithm of the ratio of two quantities. The numerator of the ratio is Pi 2 sub s and a, divided by 1 minus Pi 2 sub s and a. The denominator of the ratio is Pi 1 sub s and a, divided by 1 minus Pi 1 sub s and a.

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This page was last updated on December 30, 2008.