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1998 National Household Survey on Drug Abuse:  Population Estimates

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Cocaine Frequency - Race/Ethnicity

Table 21B. Frequency of Cocaine Use During Past Year by Age Group and Gender for White, Non-Hispanics, in 1998

AGE/

/GENDER

At Least Once

 

12 or More Days

  

51 or More Days

Observed

Estimate

95% C.I.

  

Observed

Estimate

95% C.I.

  

Observed

Estimate

95% C.I.

RATE ESTIMATES (Percent)

AGE

                            

    12-17

1.9

(1.4

-

2.7)

  

0.6

(0.3

-

1.1)

  

0.3

(0.1

-

0.7)

    18-25

5.5

(4.4

-

6.8)

  

0.9

(0.6

-

1.4)

  

0.4

(0.2

-

0.9)

    26-34

2.9

(2.1

-

4.0)

  

0.9

(0.5

-

1.6)

  

0.3

(0.1

-

0.7)

    $35

0.7

(0.5

-

1.1)

  

0.4

(0.2

-

0.8)

  

0.1

(0.0

-

0.3)

GENDER

                            

    Male

2.1

(1.7

-

2.7)

  

0.6

(0.4

-

1.0)

  

0.2

(0.1

-

0.5)

    Female

1.3

(1.0

-

1.6)

  

0.5

(0.3

-

0.8)

  

0.2

(0.1

-

0.3)

                             

TOTAL

1.7

(1.4

-

2.0)

  

0.6

(0.4

-

0.8)

  

0.2

(0.1

-

0.3)

POPULATION ESTIMATES (In Thousands)

AGE

                            

    12-17

291

(207

-

408)

  

88

(47

-

164)

  

45

(21

-

100)

    18-25

1,031

(831

-

1,275)

  

169

(108

-

265)

  

81

(40

-

167)

    26-34

693

(501

-

956)

  

208

(114

-

379)

  

67

(29

-

156)

    $35

734

(483

-

1,113)

  

440

(242

-

799)

  

127

(48

-

335)

GENDER

                            

    Male

1,667

(1,332

-

2,085)

  

473

(281

-

794)

  

178

(85

-

374)

    Female

1,081

(847

-

1,380)

  

432

(286

-

653)

  

143

(79

-

258)

                             

TOTAL

2,749

(2,333

-

3,236)

  

905

(646

-

1,265)

  

321

(200

-

513)

Table 21C. Frequency of Cocaine Use During Past Year by Age Group and Gender for Hispanics in 1998

AGE/

/GENDER

At Least Once

 

12 or More Days

  

51 or More Days

Observed

Estimate

95% C.I.

  

Observed

Estimate

95% C.I.

  

Observed

Estimate

95% C.I.

RATE ESTIMATES (Percent)

AGE

                            

    12-17

2.5

(1.7

-

3.7)

  

1.2

(0.7

-

2.0)

  

0.6

(0.3

-

1.1)

    18-25

5.1

(3.9

-

6.6)

  

2.4

(1.7

-

3.5)

  

0.9

(0.5

-

1.6)

    26-34

1.9

(1.2

-

2.9)

  

0.8

(0.5

-

1.5)

  

0.4

(0.2

-

0.9)

    $35

1.3

(0.8

-

2.2)

  

0.8

(0.4

-

1.5)

  

0.3

(0.1

-

0.9)

GENDER

                            

    Male

3.2

(2.5

-

4.1)

  

1.5

(1.1

-

2.2)

  

0.5

(0.3

-

0.9)

    Female

1.3

(0.9

-

1.8)

  

0.7

(0.4

-

1.1)

  

0.4

(0.2

-

0.8)

                             

TOTAL

2.3

(1.9

-

2.8)

  

1.1

(0.8

-

1.5)

  

0.5

(0.3

-

0.7)

POPULATION ESTIMATES (In Thousands)

AGE

                            

    12-17

78

(52

-

115)

  

36

(21

-

62)

  

18

(9

-

34)

    18-25

199

(154

-

256)

  

94

(65

-

137)

  

36

(20

-

63)

    26-34

87

(56

-

135)

  

38

(21

-

68)

  

18

(8

-

43)

    $35

142

(85

-

237)

  

81

(40

-

163)

  

32

(11

-

94)

GENDER

                            

    Male

364

(285

-

463)

  

175

(122

-

249)

  

61

(34

-

106)

    Female

142

(100

-

201)

  

75

(45

-

124)

  

42

(21

-

86)

                             

TOTAL

505

(414

-

617)

  

250

(187

-

334)

  

103

(65

-

164)

* Low precision; no estimate reported.

NOTE: "At Least Once" is equivalent to "Used Past Year" in Table 4.

Source: Office of Applied Studies, SAMHSA, National Household Survey on Drug Abuse, 1998

Cocaine Frequency - Race/Ethnicity

Table 21D. Frequency of Cocaine Use During Past Year by Age Group and Gender for Black, Non-Hispanics, in 1998

AGE/

/GENDER

At Least Once

 

12 or More Days

  

51 or More Days

Observed

Estimate

95% C.I.

  

Observed

Estimate

95% C.I.

  

Observed

Estimate

95% C.I.

RATE ESTIMATES (Percent)

AGE

                            

    12-17

*

*

 

*

*

 

*

*

    18-25

1.4

(0.8

-

2.5)

  

0.9

(0.4

-

1.9)

  

0.4

(0.2

-

0.9)

    26-34

3.4

(2.3

-

5.0)

  

2.2

(1.3

-

3.6)

  

1.6

(0.9

-

2.9)

    $35

2.0

(1.3

-

3.0)

  

1.1

(0.6

-

1.9)

  

0.6

(0.3

-

1.3)

GENDER

                            

    Male

2.5

(1.8

-

3.6)

  

1.6

(1.0

-

2.5)

  

1.0

(0.6

-

1.8)

    Female

1.3

(0.8

-

2.3)

  

0.7

(0.3

-

1.6)

  

0.4

(0.2

-

0.9)

                             

TOTAL

1.9

(1.4

-

2.5)

  

1.1

(0.8

-

1.6)

  

0.7

(0.4

-

1.1)

POPULATION ESTIMATES (In Thousands)

AGE

                            

    12-17

*

*

 

*

*

 

*

*

    18-25

54

(30

-

96)

  

35

(17

-

74)

  

15

(7

-

34)

    26-34

148

(99

-

220)

  

95

(57

-

157)

  

71

(39

-

128)

    $35

261

(170

-

401)

  

146

(85

-

251)

  

85

(43

-

168)

GENDER

                            

    Male

280

(196

-

398)

  

177

(113

-

277)

  

115

(66

-

198)

    Female

183

(106

-

315)

  

100

(44

-

224)

  

56

(26

-

120)

                             

TOTAL

463

(349

-

612)

  

277

(196

-

390)

  

171

(111

-

261)

* Low precision; no estimate reported.

NOTE: "At Least Once" is equivalent to "Used Past Year" in Table 4.

Source: Office of Applied Studies, SAMHSA, National Household Survey on Drug Abuse, 1998

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This page was last updated on June 03, 2008.