Topics of Special Interest | Appendices
2. Trends in Substance Abuse Treatment Admissions: 1994-1999
Trends in Admission Rates by Primary Substance and State
Tables 2.3-2.7 and Figures 3-7 show trends in State admission rates per 100,000 aged 12 and over for selected substances from 1994-1999.
For the maps, the median, 75th, and 90th percentiles of the range of 1994 admission rates for each substance were used to establish the rate categories. For 1994, therefore, with 47 reporting States, each map shows five States in red (the 90th percentile and above), seven States in brown (the 75th to 89th percentiles), 12 States in gold (the 50th to 74th percentiles), and 23 States in cream (below the median 1994 U.S. rate). Grey crosshatching indicates States for which data were incomplete or not submitted for a given year.
Data were not submitted for one or more years in some States because of changes to their data collection systems. These States were: Arizona (1994-1997); Indiana (1997); Kentucky (1994-1996); Mississippi (1994); West Virginia (1994 and 1997-1998); and Wyoming (1995-1996).
In three States, significant changes in the facilities reporting to TEDS from 1994-1999 resulted in changes in the number of admissions large enough to influence trends. For these States, rates are not indicated on the maps for the years affected: Texas (1994-1995), Virginia (1996-1999), and North Carolina (1999). The actual data reported, however, are included in all tables.
Finally, half-year data only were available for Nebraska and Ohio (1999) and for West Virginia (1996). Tables 2.3-2.7 and 4.5-4.8 and Figures 3-7 include projected rates based on the half-year data. These projected numbers and rates are not included in other tabulations.