1996 National Household Survey on Drug Abuse:  Preliminary Results

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70617 (101A) PRELIMINARY DATA - AS OF JUNE 1997, ADJUSTED 1979-1993 ESTIMATES

Table 1A.Estimated Numbers of Persons (in Thousands) in the U.S. Population Aged 12 and Older, by Age Group, Race/Ethnicity, and Sex: 1979-1996

Demographic

Characteristics

1979

1982

1985

1988

1990

1991

1992

1993

1994

1995

1996













TOTAL

180,343

186,440

192,605

198,347

201,188

202,859

205,713

207,199

209,411

211,532

214,047













AGE GROUP












12-17

23,758

22,295

21,558

20,250

19,978

20,145

20,684

21,224

21,773

22,208

22,512

18-25

32,604

33,236

31,601

29,688

29,021

28,496

27,964

28,327

28,027

27,820

27,796

26-34

31,339

34,241

36,477

38,570

38,821

38,737

38,215

37,194

36,588

35,975

35,474

>35

92,641

96,669

102,969

109,839

113,368

115,481

118,850

120,453

123,023

125,529

128,265













RACE/ETHNICITY












White

147,202

150,087

154,224

156,742

157,427

157,363

158,398

157,693

159,029

159,722

160,358

Black

19,271

20,134

21,332

22,271

22,779

23,030

23,649

23,002

23,365

23,686

24,053

Hispanic

10,586

11,834

13,256

14,925

15,734

16,178

16,849

18,501

19,112

19,736

20,813

Other

3,283

4,385

3,793

4,408

5,248

6,288

6,816

8,002

7,905

8,388

8,823













SEX












Male

85,887

88,840

91,828

94,878

96,382

97,242

98,778

99,322

100,365

101,449

102,928

Female

94,456

97,600

100,776

103,468

104,806

105,617

106,935

107,877

109,046

110,083

111,120

*Low precision; no estimate reported.

-- Not available.

NOTE:The population distributions for the 1993 through 1996 NHSDAs are post-stratified to population projections of totals based on the 1990 decennial census. The 1979 NHSDA used population projections based on the 1970 census; NHSDAs from 1982 through 1992 used projections based on the 1980 census. The change from one census base to another has little effect on estimated percentages reporting drug use, but may have a significant effect on estimates of number of drug users in some subpopulation groups.

NOTE:Estimates for 1979 through 1993 may differ from estimates for these survey years that were published in other NHSDA reports. The estimates shown here for 1979 through 1993 have been adjusted to improve their comparability with estimates based on the new version of the NHSDA instrument that was fielded in 1994 and subsequent NHSDAs. For 1979 and 1982, estimates are not shown (as indicated by --) where (a) the relevant data were not collected, or (b) the data for those drugs were based on measures that differed appreciably from those used in the other survey years. Consequently, adjustments to the 1979 and 1982 data were made only for those drugs whose measures were comparable to those in the other survey years.

Because of the methodology used to adjust the 1979 through 1993 estimates, some logical inconsistency may exist between estimates for a given drug within the same survey year. For example, some adjusted estimates of past year use may appear to be greater then adjusted lifetime estimates. These inconsistencies tend to be small, rare and not statistically significant.

aDifference between estimate and 1996 estimate is statistically significant at the .05 level.

bDifference between estimate and 1996 estimate is statistically significant at the .01 level.

Source: SAMHSA, Office of Applied Studies, National Household Survey on Drug Abuse.

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