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2004 National Survey on Drug Use & Health:  Detailed Tables

Introduction

Results from the 2004 National Survey on Drug Use and Health: Detailed Tables is a collection of tables generated using data from the National Survey on Drug Use and Health (NSDUH). Prior to 2002, the survey was called the National Household Survey on Drug Abuse (NHSDA). Although the majority of these tables are trend tables presenting estimates from the 2003 and 2004 NSDUHs, a select number of tables present only estimates from the 2004 NSDUH if the same or comparable data are not available from 2003. Also, a select number of tables contain annual averages, which are generated by combining 2 years of data if there are not sufficient data within a single year to produce reliable estimates. This set of tables provides annual averages combining data for 2003 and 2004, as well as 2002 and 2003. Also included are a number of tables that present data from earlier NSDUHs, including several presenting data from 2002 and 2003 and multiyear tables presenting data from 1971 to 2004. A number of tables related to respondents' mental health status were produced based on a subsample of respondents aged 18 or older.1 Finally, tables were created that present estimates corresponding to the Healthy People 2010 Objectives.2

Due to survey improvements in the 2002 NSDUH, the 2002 data constitute a new baseline for tracking trends in substance use and other measures. Therefore, estimates from the 2002 through 2004 surveys should not be compared with estimates from the 2001 or earlier surveys to examine changes over time. Methodology changes throughout NSDUH's history make it difficult to assess long-term trends from tables presenting data from 1971 to 2004. However, it is instructive to compare NSDUH estimates from 1971 to 2004 by "piecing together" the data from time periods for which data are comparable. Specifically, valid trend comparisons can be made for 1971-1998, 1999-2001, and 2002-2004. With this approach, comparisons between 1998 and 1999, and between 2001 and 2002, should be made with caution because they are potentially biased due to methods changes. Nevertheless, when these data are combined in a single presentation, it often becomes clear that the effects of the methods changes are small compared with the major shifts in substance use prevalence that have occurred over the past three decades.

Subsets of the Detailed Tables are included in Appendices G and H of the report titled Results from the 2004 National Survey on Drug Use and Health: National Findings.3 Tables included in Appendices G and H can be mapped back to these Detailed Tables by using the table number reference included in parentheses in the upper left-hand corner of each table in the appendix (e.g., Table G.1 is the equivalent of Table 8.1N). A few tables included in Appendix H are similar, but not identical, to the 2004 Detailed Tables referenced by number in parentheses. These few tables were revised from the original tables to show 3 years of data instead of 2 years. The abbreviation "REV" has been placed after the table number within the parentheses to identify these revised tables. A description of the survey measurement issues, as well as the sample design and estimation procedures used in the 2004 NSDUH, can be found in technical appendices of this same report.

Table Numbering

The Detailed Tables are numbered using a three-part numbering scheme (e.g., 1.15A). The first part of the table number (1.15A) is the subject matter section to which a particular table belongs. The second part (1.15A) is the number of the table within a particular section. The third part (1.15A) is a table type indicator, an alphabetic letter appended to the table number. There are multiple table types for each table number.

The eight subject matter sections and the number of tables per section are as follows:

Section 1:  Illicit Drug Use Tables - 1.1 to 1.132
Section 2:  Tobacco Product and Alcohol Use Tables - 2.1 to 2.114
Section 3:  Risk and Protective Factor Tables - 3.1 to 3.69
Section 4:  Incidence Tables - 4.1 to 4.50
Section 5:  Dependence, Abuse, and Treatment Tables - 5.1 to 5.99
Section 6:  Mental Health Tables - 6.1 to 6.81
Section 7:  Miscellaneous Tables - 7.1 to 7.129
Section 8:  Sample Size and Population Tables - 8.1 to 8.19

The table type indicators are primarily defined as follows; however, some exceptions do exist and are noted in the bullets below:

Table Type Purpose of the Table
   
A: Presents estimates of the numbers of persons who have used the substance(s) in the populations described by the column and row headings.
B: Presents estimates of the percentages of persons who have used the substance(s) in the populations described by the column and row headings.
C: Presents the standard error associated with each of the estimates in the "A" tables.
D: Presents the standard error associated with each of the estimates in the "B" tables.
N: Presents the number of cases in the specified NSDUH sample with the characteristics defined by the column and row headings.
P: Presents the p values from tests of the statistical significance of differences between columns in "B" tables.

The majority of tables within the Detailed Tables contain five table types (A, B, C, D, and P) as defined above. Note that table type N is used exclusively within Section 8 to display the sample size counts. Exceptions to this organization are noted below:

Locating and Accessing a Table

The Detailed Tables are organized by table type into two categories:

Both categories are organized based on subject matter sections. Clicking on the subject matter section of interest will take you to an index of tables for that section. Scroll through the list of table titles to find the table of interest, and click on the table title to go directly to that table. You need to return to the Table of Contents to access tables from other sections or categories.

Printing a Table

For best printing results, use the PDF web file of this report located at http://www.oas.samhsa.gov/nsduh/2k4nsduh/2k4tabs/2k4tabs.pdf

General PDF Printing Instructions:


End Notes

1 See Sections A.1 and A.3.2 in Appendix A and Sections B.4.4 and B.4.5 in Appendix B of the Results from the 2004 National Survey on Drug Use and Health: National Findings.

2 Additional information on the Healthy People 2010 Objectives may be obtained at http://www.healthypeople.gov/.

3 Office of Applied Studies. (2005). Results from the 2004 National Survey on Drug Use and Health: National Findings (DHHS Publication No. SMA 05-4062, NSDUH Series H-28). Rockville, MD: Substance Abuse and Mental Health Services Administration.

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This page was last updated on June 16, 2008.