1996 National Household Survey on Drug Abuse:  Preliminary Results

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70617 (302B)PRELIMINARY DATA - AS OF JUNE 1997, ADJUSTED 1985-1993 ESTIMATES 

Table 48.Percentages Reporting About Risk and Availability of Drugs in the U.S. Population Aged 12 to 17: 1985-1996

Risk/Availability

1985

1988

1990

1991

1992

1993

1994

1995

1996











PERCEPTIONS OF GREAT RISK




















Cigarettes










Smoke one or more packs per day

45.2b

47.1b

48.1b

48.3b

48.7b

51.3

51.7

--

54.0











Marijuana










Smoke once a month1

28.9

34.3

40.4b

38.0a

38.7a

37.4

32.9

--

32.6

Smoke once or twice a week1

59.7

62.5

65.7b

64.5a

64.3a

63.3a

58.5

--

57.1











Cocaine










Use once a month1

58.4

70.0b

72.4b

67.3b

67.8b

67.6b

63.3b

--

54.4

Use once or twice a week1

83.0

85.6

86.3

85.4

84.8

84.3

84.0a

--

81.4











Alcohol










Four or five drinks nearly every

day

65.8

63.3a

67.9

59.8b

61.2b

59.8b

65.4

--

66.7

Five or more drinks once or twice

a week

56.1b

51.6b

59.1b

54.9b

58.4b

54.4b

54.3b

--

45.2











AVAILABILITY




















Fairly or very easy to obtain










Marijuana

--

--

--

53.6b

51.0b

52.8b

57.6

--

57.7

Cocaine

--

--

--

35.7b

33.4

32.9

35.3a

--

32.0

Crack

--

--

--

--

--

--

33.4b

--

29.2

Heroin

--

--

--

23.1

22.4

21.3

25.3a

--

22.8











Approached by someone selling

drugs past month

--

--

--

--

13.4

14.4

13.0

--

14.9











*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. NHSDAs from 1985 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.

1Estimates for 1985 through 1993 may differ from estimates for these survey years that were published in other NHSDA reports. The estimates shown here for 1985 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. Because of the methodology used to adjust the 1985 through 1993 estimates, some logical inconsistency may exist between estimates for a given drug within the same survey year. 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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