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1998 National Household Survey on Drug Abuse:  Population Estimates

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Cocaine Frequency - Region

Table 21E. Frequency of Cocaine Use During Past Year by Age Group and Gender for Northeast Region 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

0.6

(0.2

-

1.7)

 

0.2

(0.0

-

1.1)

 

0.2

(0.0

-

1.1)

    18-25

3.3

(1.8

-

6.0)

 

0.9

(0.4

-

2.4)

 

0.4

(0.1

-

2.0)

    26-34

2.5

(1.2

-

4.9)

 

1.7

(0.9

-

3.0)

 

0.9

(0.4

-

2.0)

    $35

0.4

(0.2

-

1.1)

 

0.3

(0.1

-

1.0)

 

*

*

GENDER

                           

    Male

1.2

(0.7

-

2.1)

 

0.4

(0.2

-

0.9)

 

0.3

(0.1

-

0.8)

    Female

1.0

(0.6

-

1.7)

 

0.8

(0.4

-

1.5)

 

0.2

(0.1

-

0.6)

                             

TOTAL

1.1

(0.7

-

1.6)

 

0.6

(0.4

-

1.0)

 

0.2

(0.1

-

0.5)

POPULATION ESTIMATES (In Thousands)

AGE

                           

    12-17

25

(9

-

68)

 

9

(2

-

44)

 

9

(2

-

44)

    18-25

163

(89

-

297)

 

45

(17

-

117)

 

22

(5

-

97)

    26-34

167

(83

-

333)

 

112

(61

-

205)

 

61

(28

-

134)

    $35

107

(40

-

283)

 

85

(29

-

254)

 

*

*

GENDER

                           

    Male

246

(140

-

432)

 

81

(34

-

190)

 

54

(19

-

153)

    Female

216

(125

-

372)

 

171

(87

-

336)

 

48

(18

-

129)

                             

TOTAL

462

(310

-

690)

 

252

(155

-

411)

 

102

(50

-

208)

Table 21F. Frequency of Cocaine Use During Past Year by Age Group and Gender for North Central Region 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

1.2

(0.6

-

2.4)

 

0.2

(0.0

-

0.8)

 

0.1

(0.0

-

0.8)

    18-25

5.4

(3.7

-

8.0)

 

1.1

(0.5

-

2.2)

 

0.7

(0.2

-

1.9)

    26-34

2.9

(1.8

-

4.6)

 

0.5

(0.2

-

1.4)

 

0.2

(0.0

-

1.0)

    $35

0.5

(0.2

-

1.2)

 

0.2

(0.0

-

0.8)

 

0.2

(0.0

-

0.8)

GENDER

                           

    Male

2.2

(1.5

-

3.2)

 

0.5

(0.2

-

1.1)

 

0.4

(0.1

-

1.0)

    Female

1.0

(0.6

-

1.6)

 

0.2

(0.1

-

0.5)

 

0.1

(0.0

-

0.4)

                             

TOTAL

1.6

(1.2

-

2.1)

 

0.3

(0.2

-

0.6)

 

0.2

(0.1

-

0.5)

POPULATION ESTIMATES (In Thousands)

AGE

                           

    12-17

66

(33

-

130)

 

9

(2

-

46)

 

5

(1

-

44)

    18-25

361

(245

-

528)

 

71

(34

-

149)

 

44

(16

-

124)

    26-34

225

(139

-

364)

 

39

(14

-

106)

 

13

(2

-

75)

    $35

157

(68

-

364)

 

56

(13

-

243)

 

50

(10

-

255)

GENDER

                           

    Male

538

(367

-

785)

 

121

(56

-

261)

 

92

(35

-

242)

    Female

272

(173

-

428)

 

54

(21

-

140)

 

21

(4

-

97)

                             

TOTAL

810

(605

-

1,082)

 

175

(97

-

315)

 

113

(49

-

259)

* 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 - Region

Table 21G. Frequency of Cocaine Use During Past Year by Age Group and Gender for South Region 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

2.1

(1.2

-

3.5)

 

0.7

(0.3

-

1.6)

 

0.3

(0.1

-

0.6)

    18-25

3.7

(2.6

-

5.2)

 

0.8

(0.4

-

1.4)

 

0.3

(0.2

-

0.7)

    26-34

2.6

(1.6

-

4.1)

 

1.2

(0.6

-

2.4)

 

0.4

(0.2

-

1.0)

    $35

1.0

(0.6

-

1.7)

 

0.7

(0.3

-

1.3)

 

0.2

(0.1

-

0.6)

GENDER

                           

    Male

2.4

(1.8

-

3.3)

 

1.2

(0.7

-

2.0)

 

0.4

(0.2

-

0.8)

    Female

1.1

(0.7

-

1.5)

 

0.4

(0.2

-

0.7)

 

0.2

(0.1

-

0.3)

                             

TOTAL

1.7

(1.4

-

2.2)

 

0.8

(0.5

-

1.2)

 

0.3

(0.2

-

0.5)

POPULATION ESTIMATES (In Thousands)

AGE

                           

    12-17

165

(98

-

278)

 

56

(25

-

127)

 

21

(9

-

49)

    18-25

369

(257

-

526)

 

78

(44

-

138)

 

34

(17

-

68)

    26-34

318

(200

-

502)

 

143

(69

-

296)

 

47

(19

-

118)

    $35

477

(286

-

792)

 

316

(159

-

625)

 

105

(41

-

270)

GENDER

                           

    Male

902

(656

-

1,238)

 

435

(255

-

738)

 

140

(66

-

296)

    Female

426

(290

-

624)

 

158

(87

-

287)

 

66

(33

-

132)

                             

TOTAL

1,329

(1,047

-

1,684)

 

593

(392

-

897)

 

207

(120

-

354)

Table 21H. Frequency of Cocaine Use During Past Year by Age Group and Gender for West Region 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

2.3

(1.5

-

3.6)

 

1.0

(0.5

-

1.9)

 

0.5

(0.2

-

1.5)

    18-25

6.5

(5.1

-

8.2)

 

1.7

(1.2

-

2.4)

 

0.5

(0.3

-

1.0)

    26-34

2.9

(1.8

-

4.7)

 

0.6

(0.3

-

1.3)

 

0.4

(0.2

-

1.1)

    $35

1.6

(1.0

-

2.4)

 

0.8

(0.4

-

1.4)

 

0.3

(0.1

-

0.6)

GENDER

                           

    Male

3.0

(2.4

-

3.8)

 

0.9

(0.6

-

1.3)

 

0.3

(0.2

-

0.5)

    Female

2.1

(1.5

-

2.8)

 

0.9

(0.5

-

1.6)

 

0.4

(0.2

-

0.8)

                             

TOTAL

2.5

(2.1

-

3.1)

 

0.9

(0.6

-

1.3)

 

0.4

(0.2

-

0.6)

POPULATION ESTIMATES (In Thousands)

AGE

                           

    12-17

122

(79

-

187)

 

51

(26

-

101)

 

28

(10

-

79)

    18-25

412

(326

-

520)

 

106

(73

-

153)

 

32

(17

-

61)

    26-34

232

(143

-

373)

 

48

(23

-

102)

 

34

(13

-

90)

    $35

444

(291

-

675)

 

226

(125

-

405)

 

79

(35

-

174)

GENDER

                           

    Male

712

(560

-

905)

 

206

(144

-

295)

 

68

(38

-

122)

    Female

498

(360

-

685)

 

225

(128

-

394)

 

106

(56

-

199)

                             

TOTAL

1,210

(998

-

1,465)

 

431

(307

-

605)

 

174

(111

-

272)

* 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.