Click here to go to the Table of Contents

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 estimate of the log-odds ratio, lor hat, sub s and a, is defined as the logarithm of the ratio of two quantities. The numerator of the ratio is p 2 sub s and a, divided by 1 minus p 2 sub s and a. The denominator of the ratio is p 1 sub s and a, divided by 1 minus p 1 sub s and a, where p 1 sub s and a are the 2002–2003 State estimates and p 2 sub s and a are the 2003–2004 State estimates.

Click here to return to Appendix A

Click here to go to the top of this pageClick here to go to the Table of Contents

This page was last updated on December 30, 2008.