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1998 National Household Survey on Drug Abuse:  Population Estimates

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Marijuana Frequency - Race/Ethnicity

Table 20B. Frequency of Marijuana 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

14.6

(13.0

-

16.3)

  

8.6

(7.2

-

10.1)

  

5.6

(4.4

-

7.0)

    18-25

26.5

(23.9

-

29.3)

  

15.0

(13.3

-

17.0)

  

9.8

(8.4

-

11.4)

    26-34

10.3

(8.8

-

12.0)

  

4.7

(3.8

-

5.9)

  

3.0

(2.3

-

4.0)

    $35

3.9

(3.2

-

4.7)

  

2.2

(1.7

-

2.8)

  

1.5

(1.0

-

2.1)

GENDER

                            

    Male

10.4

(9.4

-

11.5)

  

5.9

(5.1

-

6.8)

  

4.0

(3.3

-

4.8)

    Female

6.7

(5.9

-

7.5)

  

3.5

(2.9

-

4.1)

  

2.2

(1.8

-

2.7)

                             

TOTAL

8.4

(7.8

-

9.2)

  

4.6

(4.1

-

5.2)

  

3.0

(2.6

-

3.6)

POPULATION ESTIMATES (In Thousands)

AGE

                            

    12-17

2,220

(1,977

-

2,487)

  

1,300

(1,094

-

1,542)

  

847

(672

-

1,066)

    18-25

4,969

(4,483

-

5,487)

  

2,816

(2,487

-

3,180)

  

1,837

(1,575

-

2,138)

    26-34

2,453

(2,096

-

2,862)

  

1,127

(898

-

1,411)

  

718

(544

-

946)

    $35

4,045

(3,343

-

4,886)

  

2,277

(1,770

-

2,926)

  

1,531

(1,061

-

2,205)

GENDER

                            

    Male

8,119

(7,331

-

8,981)

  

4,607

(3,989

-

5,314)

  

3,122

(2,590

-

3,758)

    Female

5,567

(4,913

-

6,302)

  

2,914

(2,467

-

3,439)

  

1,812

(1,474

-

2,224)

                             

TOTAL

13,686

(12,557

-

14,907)

  

7,521

(6,687

-

8,453)

  

4,934

(4,205

-

5,783)

Table 20C. Frequency of Marijuana 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

14.4

(12.2

-

16.9)

  

6.5

(5.0

-

8.4)

  

3.4

(2.4

-

4.8)

    18-25

16.6

(14.2

-

19.4)

  

9.1

(7.4

-

11.0)

  

5.7

(4.4

-

7.2)

    26-34

6.4

(4.8

-

8.4)

  

3.2

(2.2

-

4.6)

  

2.1

(1.3

-

3.3)

    $35

4.1

(2.9

-

5.8)

  

2.7

(1.8

-

4.0)

  

1.4

(0.9

-

2.3)

GENDER

                            

    Male

10.5

(8.8

-

12.4)

  

6.1

(5.0

-

7.3)

  

3.5

(2.7

-

4.5)

    Female

5.8

(4.8

-

7.0)

  

2.8

(2.1

-

3.6)

  

1.6

(1.1

-

2.3)

                             

TOTAL

8.2

(7.2

-

9.3)

  

4.4

(3.8

-

5.2)

  

2.6

(2.1

-

3.2)

POPULATION ESTIMATES (In Thousands)

AGE

                            

    12-17

447

(380

-

525)

  

202

(157

-

260)

  

107

(76

-

149)

    18-25

651

(555

-

759)

  

354

(290

-

432)

  

222

(173

-

283)

    26-34

297

(224

-

393)

  

151

(105

-

216)

  

98

(62

-

155)

    $35

434

(305

-

614)

  

284

(191

-

421)

  

148

(91

-

240)

GENDER

                            

    Male

1,187

(998

-

1,407)

  

687

(568

-

828)

  

397

(310

-

507)

    Female

642

(531

-

774)

  

305

(233

-

398)

  

178

(122

-

258)

                             

TOTAL

1,829

(1,616

-

2,067)

  

992

(852

-

1,154)

  

574

(468

-

705)

* Low precision; no estimate reported.

NOTE: "At Least Once" is equivalent to "Used Past Year" in Table 3.

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

Marijuana Frequency - Race/Ethnicity

Table 20D. Frequency of Marijuana 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

12.1

(9.3

-

15.6)

  

5.3

(3.8

-

7.4)

  

3.1

(2.0

-

4.9)

    18-25

24.4

(22.0

-

27.0)

  

16.4

(14.2

-

18.9)

  

10.7

(9.0

-

12.8)

    26-34

11.8

(9.7

-

14.4)

  

7.8

(6.0

-

10.0)

  

5.6

(4.0

-

7.8)

    $35

5.8

(4.4

-

7.5)

  

3.7

(2.7

-

5.2)

  

2.5

(1.7

-

3.8)

GENDER

                            

    Male

14.8

(12.9

-

16.9)

  

10.0

(8.4

-

11.8)

  

6.7

(5.2

-

8.5)

    Female

7.2

(6.1

-

8.5)

  

4.0

(3.3

-

4.7)

  

2.6

(2.1

-

3.3)

                             

TOTAL

10.6

(9.4

-

11.9)

  

6.7

(5.8

-

7.6)

  

4.4

(3.7

-

5.3)

POPULATION ESTIMATES (In Thousands)

AGE

                            

    12-17

391

(301

-

505)

  

172

(123

-

240)

  

101

(64

-

159)

    18-25

958

(863

-

1,060)

  

644

(558

-

740)

  

421

(353

-

501)

    26-34

516

(422

-

628)

  

339

(262

-

435)

  

244

(174

-

340)

    $35

763

(586

-

987)

  

496

(356

-

687)

  

336

(221

-

508)

GENDER

                            

    Male

1,646

(1,433

-

1,886)

  

1,111

(932

-

1,319)

  

745

(585

-

946)

    Female

982

(826

-

1,165)

  

540

(452

-

644)

  

357

(285

-

446)

                             

TOTAL

2,628

(2,339

-

2,949)

  

1,651

(1,439

-

1,890)

  

1,102

(918

-

1,322)

* Low precision; no estimate reported.

NOTE: "At Least Once" is equivalent to "Used Past Year" in Table 3.

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.