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2003 National Survey on Drug Use & Health:  Detailed Tables

40618

Table  4.1C Standard Errors of Numbers (in Thousands) of Persons Who First Used Marijuana in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 100 62 79 0.5 3.0 4.0
1966 88 47 72 0.5 2.2 3.4
1967 108 62 91 0.4 2.9 4.3
1968 136 78 108 0.3 3.6 4.8
1969 157 76 137 0.3 3.5 6.3
1970 151 91 119 0.2 4.2 5.8
1971 145 84 120 0.3 3.8 5.8
1972 140 93 103 0.3 4.1 4.8
1973 148 92 113 0.3 4.2 5.7
1974 140 96 100 0.3 4.6 4.6
1975 144 99 106 0.3 4.9 5.1
1976 142 99 96 0.4 5.0 4.8
1977 144 101 101 0.4 5.1 4.6
1978 137 104 89 0.4 5.5 4.8
1979 135 94 95 0.4 5.0 4.5
1980 121 88 81 0.4 4.6 4.4
1981 115 84 83 0.4 4.9 4.9
1982 112 81 79 0.5 4.6 4.1
1983 114 88 70 0.3 4.7 4.3
1984 100 75 65 0.4 4.2 3.7
1985 110 87 64 0.4 5.1 3.7
1986 99 76 67 0.3 4.3 4.0
1987 88 69 56 0.4 4.1 3.9
1988 92 69 54 0.7 4.2 3.3
1989 87 63 62 0.4 3.8 3.9
1990 79 54 59 0.6 3.2 3.3
1991 86 59 64 0.4 3.4 3.8
1992 93 61 65 0.3 3.5 4.1
1993 83 53 63 0.4 3.0 3.8
1994 81 51 62 0.3 2.7 3.9
1995 84 44 72 0.2 2.3 4.4
1996 71 46 51 0.2 2.3 3.1
1997 76 47 58 0.2 2.3 3.1
1998 65 47 45 0.3 2.3 2.7
1999 68 44 48 0.2 2.1 2.9
2000 67 49 41 0.2 2.4 2.4
2001 61 41 44 0.2 2.0 2.3
20022 82 59 57 0.3 3.0 3.2
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.2C Standard Errors of Numbers (in Thousands) of Persons Who First Used Cocaine in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 25 * 23 * * *
1966 15 * 14 * * *
1967 45 * 45 * * *
1968 51 32 40 1.2 1.4 1.7
1969 39 17 35 1.6 0.7 1.2
1970 49 23 44 0.4 1.0 1.7
1971 63 22 59 0.8 0.9 2.1
1972 56 25 49 0.6 1.0 1.9
1973 71 33 62 0.6 1.4 2.1
1974 92 32 84 0.7 1.3 2.2
1975 79 33 71 0.5 1.3 2.1
1976 87 35 79 0.4 1.4 2.6
1977 81 38 73 0.6 1.6 2.1
1978 95 37 87 0.4 1.6 2.6
1979 91 43 81 0.3 1.9 2.6
1980 103 42 95 0.5 1.9 2.6
1981 89 39 82 0.3 1.9 2.7
1982 89 36 81 0.4 1.7 2.3
1983 94 33 88 0.4 1.6 3.0
1984 84 37 78 0.4 1.8 2.3
1985 82 35 75 0.5 1.7 2.4
1986 77 31 73 0.5 1.6 2.2
1987 79 37 73 0.5 1.9 2.3
1988 79 28 71 0.6 1.5 2.4
1989 68 23 65 0.4 1.2 2.2
1990 70 29 66 0.6 1.6 1.9
1991 55 24 50 0.6 1.3 1.7
1992 70 31 60 0.9 1.6 1.7
1993 50 20 46 0.5 1.0 1.5
1994 53 13 53 0.6 0.6 1.9
1995 55 17 51 0.4 0.8 1.9
1996 56 19 55 0.8 0.9 1.7
1997 48 18 44 0.4 0.8 1.7
1998 48 17 45 0.4 0.7 1.5
1999 46 17 42 0.4 0.7 1.2
2000 49 18 44 0.5 0.7 1.3
2001 52 21 47 0.5 0.8 1.1
20022 57 26 51 0.4 1.1 1.4
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.3C Standard Errors of Numbers (in Thousands) of Persons Who First Used Crack in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 * * * * * *
1966 * * * * * *
1967 * * * * * *
1968 * * * * * *
1969 * * * * * *
1970 * * * * * *
1971 * * * * * *
1972 * * * * * *
1973 13 * * * * *
1974 * * * * * *
1975 * * * * * *
1976 * * * * * *
1977 17 * 14 0.8 * 0.4
1978 30 * 28 1.2 * 0.7
1979 23 * 23 1.5 * 0.6
1980 32 * 25 1.5 * 0.5
1981 32 * 31 1.0 * 0.8
1982 34 * 31 1.3 * 0.6
1983 32 9 31 1.6 0.4 0.6
1984 39 11 37 1.0 0.5 0.9
1985 55 16 54 1.3 0.8 1.1
1986 36 13 33 1.4 0.7 0.8
1987 38 14 33 0.9 0.7 0.9
1988 45 12 43 1.0 0.6 0.9
1989 44 5 43 0.5 0.3 1.2
1990 53 9 52 0.9 0.5 1.0
1991 45 14 41 0.8 0.7 0.9
1992 49 11 48 1.0 0.6 0.9
1993 41 10 40 1.3 0.5 0.8
1994 43 10 42 0.9 0.5 1.0
1995 44 8 43 1.1 0.3 0.9
1996 41 9 40 0.9 0.4 0.9
1997 40 9 39 1.1 0.4 0.9
1998 37 10 34 0.7 0.4 0.9
1999 36 9 35 0.8 0.4 0.8
2000 36 11 34 1.0 0.4 0.6
2001 28 9 27 1.2 0.4 0.4
20022 42 12 40 0.9 0.5 0.8
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.4C Standard Errors of Numbers (in Thousands) of Persons Who First Used Heroin in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 * * * * * *
1966 * * * * * *
1967 22 * * * * *
1968 34 * * 0.7 * *
1969 15 * 14 1.0 * 0.6
1970 36 17 * 3.5 0.7 *
1971 26 9 25 0.7 0.4 0.9
1972 30 7 29 0.9 0.3 1.0
1973 41 12 42 1.0 0.5 1.3
1974 41 * 35 0.7 * 1.2
1975 18 * 16 1.4 * 0.5
1976 21 * 20 1.4 * 0.5
1977 26 3 26 1.0 0.1 0.7
1978 21 * 18 1.2 * 0.6
1979 19 8 17 1.1 0.3 0.5
1980 22 * 18 1.0 * 0.5
1981 28 8 26 0.7 0.3 0.8
1982 16 * 16 1.0 * 0.4
1983 26 * 26 1.5 * 0.6
1984 24 * 21 1.3 * 0.4
1985 11 * 11 1.0 * 0.2
1986 23 * 17 1.3 * 0.5
1987 21 * 21 1.3 * 0.5
1988 16 * 16 1.2 * 0.5
1989 23 * 22 1.3 * 0.6
1990 17 * 17 1.5 * *
1991 24 * 24 1.5 * 0.5
1992 19 4 19 1.5 0.2 0.4
1993 17 3 16 1.3 0.1 0.3
1994 19 5 18 1.7 0.3 *
1995 25 9 23 1.3 0.4 0.3
1996 22 5 22 1.1 0.2 0.6
1997 19 6 18 1.7 0.3 0.4
1998 23 5 22 0.9 0.2 0.5
1999 20 6 18 1.7 0.3 0.4
2000 13 7 11 0.6 0.3 0.3
2001 18 6 18 1.3 0.2 0.4
20022 22 6 21 1.1 0.2 0.4
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.5C Standard Errors of Numbers (in Thousands) of Persons Who First Used Hallucinogens in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 32 * 31 0.8 * 1.6
1966 36 23 28 2.9 1.1 0.9
1967 54 37 40 0.8 1.7 1.6
1968 58 42 40 1.2 1.8 1.5
1969 84 45 71 0.4 2.0 2.8
1970 85 45 72 0.3 1.9 3.0
1971 90 49 74 0.4 2.1 3.0
1972 81 60 53 0.3 2.6 2.2
1973 72 45 56 0.3 1.9 2.2
1974 75 44 56 0.4 1.8 2.0
1975 73 51 54 0.3 2.2 2.0
1976 71 46 55 0.3 2.0 2.0
1977 74 48 54 0.3 2.1 2.0
1978 70 49 51 0.3 2.2 2.0
1979 78 51 56 0.3 2.3 1.9
1980 73 49 55 0.3 2.3 2.0
1981 76 44 60 0.4 2.2 2.0
1982 77 41 64 0.8 2.0 1.9
1983 58 37 47 0.4 1.8 1.6
1984 67 39 54 0.5 1.9 1.9
1985 60 36 46 0.3 1.8 1.7
1986 63 38 47 0.4 1.9 1.6
1987 59 41 39 0.5 2.1 1.5
1988 62 38 49 0.4 2.0 1.8
1989 58 34 47 0.3 1.8 1.8
1990 57 33 48 0.4 1.8 1.7
1991 54 35 41 0.4 1.9 1.5
1992 56 38 41 0.4 1.9 1.5
1993 51 30 42 0.4 1.5 1.6
1994 55 26 47 0.2 1.3 1.9
1995 49 25 42 0.2 1.2 1.7
1996 55 24 47 0.7 1.1 1.8
1997 52 24 44 0.4 1.1 1.8
1998 50 24 44 0.3 1.0 1.6
1999 54 27 44 0.2 1.1 1.7
2000 52 30 42 0.2 1.3 1.5
2001 57 26 50 0.3 1.1 1.5
20022 52 32 47 0.4 1.3 1.5
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.6C Standard Errors of Numbers (in Thousands) of Persons Who First Used LSD in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 15 * 13 * * 0.7
1966 31 20 24 4.2 1.0 0.6
1967 38 24 29 1.1 1.1 1.1
1968 59 47 35 0.7 2.2 1.3
1969 75 39 68 0.6 1.7 2.7
1970 86 45 68 0.3 1.9 2.8
1971 74 37 65 0.5 1.6 2.4
1972 83 56 57 0.3 2.4 2.2
1973 75 45 61 0.5 1.9 2.2
1974 69 43 50 0.3 1.8 1.9
1975 63 42 46 0.4 1.8 1.5
1976 55 36 40 0.3 1.5 1.4
1977 69 46 52 0.4 2.0 1.9
1978 57 37 41 0.3 1.6 1.5
1979 65 47 48 0.4 2.1 1.5
1980 70 47 54 0.3 2.2 1.9
1981 67 41 51 0.4 2.0 1.6
1982 64 38 49 0.7 1.8 1.4
1983 52 34 39 0.3 1.7 1.4
1984 55 31 46 0.7 1.5 1.5
1985 50 33 38 0.6 1.6 1.2
1986 44 29 34 0.4 1.5 1.2
1987 50 38 32 0.4 1.9 1.1
1988 55 38 39 0.3 2.0 1.4
1989 49 31 40 0.4 1.6 1.4
1990 49 32 36 0.5 1.7 1.3
1991 51 34 37 0.3 1.8 1.4
1992 50 35 40 0.3 1.8 1.5
1993 43 23 35 0.3 1.2 1.3
1994 51 27 42 0.3 1.4 1.6
1995 44 23 37 0.2 1.1 1.5
1996 48 22 41 0.3 1.0 1.7
1997 40 21 32 0.3 0.9 1.3
1998 37 22 28 0.2 1.0 1.1
1999 34 21 26 0.2 0.9 0.9
2000 39 22 33 0.2 0.9 1.2
2001 30 19 22 0.2 0.8 0.8
20022 23 17 15 0.2 0.7 0.6
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.7C Standard Errors of Numbers (in Thousands) of Persons Who First Used PCP in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 * * * * * *
1966 * * * * * *
1967 * * * * * *
1968 * * * * * *
1969 22 15 * 1.7 0.7 *
1970 41 21 35 0.7 0.9 1.3
1971 39 24 30 0.6 1.0 1.1
1972 55 37 41 1.1 1.5 1.1
1973 45 25 34 0.4 1.0 1.2
1974 53 34 37 0.4 1.4 1.2
1975 47 36 35 0.5 1.5 1.1
1976 52 34 39 0.7 1.4 1.1
1977 48 29 40 0.5 1.2 1.2
1978 47 26 41 0.8 1.1 1.1
1979 40 25 30 0.5 1.1 1.0
1980 44 27 35 0.9 1.2 0.9
1981 38 19 33 0.7 0.9 1.0
1982 35 16 31 0.7 0.8 0.9
1983 29 19 22 0.5 0.9 0.7
1984 26 10 24 0.5 0.5 0.8
1985 24 14 19 0.7 0.7 0.6
1986 29 13 25 0.9 0.6 0.8
1987 25 18 18 1.1 0.9 0.6
1988 21 14 18 1.4 0.8 0.5
1989 22 14 17 0.9 0.8 0.5
1990 18 13 13 2.2 0.7 0.3
1991 20 12 16 1.8 0.6 0.4
1992 23 8 21 0.5 0.4 0.8
1993 13 7 11 1.5 0.4 0.2
1994 17 12 11 0.3 0.6 0.4
1995 24 8 23 0.6 0.4 0.8
1996 20 9 17 0.8 0.4 0.5
1997 16 8 14 0.4 0.3 0.5
1998 14 10 9 0.5 0.4 0.3
1999 19 11 16 0.6 0.4 0.6
2000 14 11 8 0.2 0.4 0.3
2001 16 11 13 0.5 0.4 0.4
20022 16 12 10 0.3 0.5 0.4
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.8C Standard Errors of Numbers (in Thousands) of Persons Who First Used Ecstasy in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 * * * * * *
1966 * * * * * *
1967 * * * * * *
1968 * * * * * *
1969 * * * * * *
1970 * * * * * *
1971 * * * * * *
1972 * * * * * *
1973 * * * * * *
1974 * * * * * *
1975 * * * * * *
1976 23 * 22 1.4 * *
1977 * * * * * *
1978 * * * * * *
1979 14 * 14 2.0 * 0.3
1980 14 * 12 2.8 * *
1981 13 * 13 * * 0.4
1982 11 * * * * *
1983 27 * 25 3.2 * 0.5
1984 26 * 26 2.0 * 0.5
1985 24 7 23 0.7 0.4 0.6
1986 26 10 24 0.8 0.5 0.7
1987 29 9 27 1.2 0.5 0.8
1988 36 17 31 1.4 0.9 0.8
1989 33 13 30 1.1 0.7 0.8
1990 35 10 33 0.9 0.5 0.8
1991 29 9 27 0.9 0.4 0.8
1992 32 9 31 0.8 0.5 0.8
1993 32 10 29 1.0 0.5 0.9
1994 31 12 29 0.9 0.6 0.8
1995 41 10 39 0.8 0.5 1.3
1996 44 11 42 1.9 0.5 1.0
1997 49 12 47 0.7 0.5 1.5
1998 57 14 55 0.3 0.6 1.5
1999 58 20 53 0.3 0.8 1.5
2000 66 25 60 0.4 1.1 1.5
2001 66 24 62 0.4 1.0 1.4
20022 63 27 59 0.8 1.1 1.3
*Low precision; no estimate reported.
-- Not available.
NOTE: Comparisons between years, particularly between recent estimates and those from 10 or more years prior, should be made with caution due to potential reporting and other biases.
1 The numerator of each rate is the number of persons in the age group who first used the drug in the year, while the denominator is the person-time exposure of persons in the age group measured in thousands of years.
2 Estimated using 2003 data only.
Source: SAMHSA, Office of Applied Studies, National Survey on Drug Use and Health, 2002 and 2003.

40618

Table  4.9C Standard Errors of Numbers (in Thousands) of Persons Who First Used Inhalants in the United States, Their Mean Age at First Use, and Rates of First Use (Per 1,000 Person-Years of Exposure): 1965-2002, Based on 2002 and 2003 NSDUHs
YEAR NUMBER OF INITIATES (1,000s) MEAN
AGE		 AGE-SPECIFIC RATES1
All Ages Under 18 18 or Older 12–17 18–25
1965 24 24 * 0.4 1.2 *
1966 44 40 17 0.8 1.8 *
1967 32 24 22 1.8 1.0 0.7
1968 48 34 35 1.5 1.5 *
1969 43 34 26 0.6 1.5 1.1
1970 44 35 27 0.6 1.3 1.1
1971 42 33 26 0.4 1.4 1.0
1972 50 39 31 1.1 1.6 0.9
1973 54 30 43 1.2 1.3 1.1
1974 52 31 43 0.7 1.2 1.4
1975 55 40 35 0.5 1.6 1.2
1976 65 44 49 0.5 1.9 1.5
1977 77 40 63 0.5 1.7 1.9
1978 59 41 43 0.4 1.8 1.4
1979 72 51 52 0.4 2.3 1.5
1980 62 45 40 0.8 2.1 1.1
1981 53 35 40 0.4 1.7 1.2
1982 49 35 37 0.6 1.6 1.0
1983 57 44 34 0.7 2.1 0.9
1984 52 38 35 0.6 1.8 1.1
1985 50 35 37 0.8 1.8 1.0
1986 55 40 37 0.8 1.9 1.0
1987 54 38 35 0.6 1.9 1.1
1988 52 38 34 0.4 1.9 1.2
1989 47 30 35 0.9 1.6 1.4
1990 43 29