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Services Research Outcomes Study (SROS)

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Table B-1. Percentage who used drugs and alcohol during the five years before and after treatment

Table B-2.Percentage in inpatient treatment who used drugs and alcohol during the five years before and after treatment

Table B-3.Percentage in residential treatment who used drugs and alcohol during the five years before and after treatment

Table B-4.Percentage in outpatient methadone treatment who used drugs and alcohol during the five years before and after treatment

Table B-5.Percentage in outpatient nonmethadone treatment who used drugs and alcohol during the five years before and after treatment

Table B-6.Number of days per month used specific drugs in five years before and after treatment, among respondents who used the drug during the five years before treatment

Table B-7. Number of days per month used specific drugs in five years before and after treatment, among respondents in inpatient treatment who used the drug during the five years before treatment

Table B-8.Number of days per month used specific drugs in five years before and after treatment, among respondents in residential treatment who used the drug during the five years before treatment

Table B-9.Number of days per month used specific drugs in five years before and after treatment, among respondents in outpatient methadone treatment who used the drug during the five years before treatment

Table B-10. Number of days per month used specific drugs in five years before and after treatment, among respondents in outpatient nonmethadone treatment who used the drug during the five years before treatment

Table B-11. Number of days per month used specific drugs in five years before and after treatment, among respondents who used the drug during the five years before and after treatment

Table B-12.Number of days per month used specific drugs in five years before and after treatment, among respondents in inpatient treatment who used the drug before and after treatment

Table B-13.Number of days per month used specific drugs in five years before and after treatment, among respondents in residential treatment who used the drug before and after treatment

Table B-14.Number of days per month used specific drugs in five years before and after treatment, among respondents in outpatient methadone treatment who used the drug before and after treatment

Table B-15.Number of days per month used specific drugs in five years before and after treatment, among respondents in outpatient nonmethadone treatment who used the drug before and after treatment

Table B-16.Percentage who used alcohol during the five years before and after treatment

Table B-17. Percentage who used any illicit drug during the five years before and after treatment

Table B-18. Percentage who used marijuana during the five years before and after treatment

Table B-19. Percentage who used cocaine during the five years before and after treatment

Table B-20 Percentage who used crack during the five years before and after treatment

Table B-20 Percentage who used crack during the five years before and after treatment

Table B-20 Percentage who used crack during the five years before and after treatment

Table B-21. Percentage who used heroin during the five years before and after treatment

Table B-22. Percentage in inpatient treatment who used any illicit drug during the five years before and after treatment

Table B-23. Percentage in residential treatment who used any illicit drug during the five years before and after treatment

Table B-24. Percentage in outpatient methadone treatment who used any illicit drug during the five years before and after treatment

Table B-25. Percentage in outpatient nonmethadone treatment who used any illicit drug during the five years before and after treatment

Table B-26. Percentage who reported any criminal activity during the five years before and after treatment

Table B-27. Percentage in inpatient treatment who reported criminal activity during the five years before and after treatment

Table B-28. Percentage in residential treatment who reported criminal activity during the five years before and after treatment

Table B-29. Percentage in methadone maintenance treatment who reported criminal activity during the five years before and after treatment

Table B-30. Percentage in outpatient nonmethadone treatment who reported criminal activity during the five years before and after treatment

Table B-31. Percentage who drove under the influence during the five years before and after treatment

Table B-32. Percentage who drove while intoxicated during the five years before and after treatment

Table B-34. Percentage who engaged in prostitution/procurement during the five years before and after treatment

Table B-35. Percentage who engaged in theft/larceny during the five years before and after treatment

Table B-36. Percentage who engaged in breaking and entering during the five years before and after treatment

Table B-37. Percentage who violated parole during the five years before and after treatment

Table B-38. Percentage with Selected Lifestyle characteristics during the five years before and after treatment

Table B-39. Percentage who were employed full-time during the five years before and after treatment

Table B-40. Percentage who received additional treatment after SROS episode and mean number of episodes

Table B-41. Correlates of alcohol use in the five years after treatment (Tx):  Results of logistic regression models

Table B-42. Correlates of any drug use in the five years after treatment (Tx):  Results of logistic regression models

Table B-43. Correlates of marijuana use in the five years after treatment (Tx) :  Results of logistic regression models

Table B-44. Correlates of cocaine use in the five years after treatment (Tx):  Results of logistic regression models

Table B-45. Correlates of crack use in the five years after treatment (Tx):  Results of logistic regression models

Table B-46. Correlates of heroin use in the five years after treatment (Tx):  Results of logistic regression models

Table B-47. Correlates of alcohol use in the five years after treatment (Tx) :  Results of OLS regression models

Table B-48. Correlates of marijuana use in the five years after treatment (Tx):  Results of OLS regression models

Table B-49. Correlates of crack use in the five years after treatment (Tx):  Results of OLS regression models

Table B-50. Correlates of cocaine use in the five years after treatment (Tx):  Results of OLS regression models

Table B-51. Correlates of heroin use in the five years after treatment (Tx):  Results of OLS regression models

Table B-52. Correlates of drug selling in the five years after treatment (Tx):  Results of logistic regression models

Table B-53. Correlates of prostitution/procurement in the five years after treatment (Tx):  Results of logistic regression models

Table B-54. Correlates of larceny/theft in the five years after treatment (Tx):  Results of logistic regression models

Table B-55. Correlates of breaking and entering in the five years  after treatment (Tx):  Results of logistic regression models

APPENDIX B: DETAILED TABLES

Table B-1. Percentage who used drugs and alcohol during the five years before and after treatment

[SROS sampled 3,047 clients discharged from drug treatment in 1989-1990]

Drug

Percentage using 5 or more times




Before

(n)

After

(n)

Differencea

Standard Error

(n)

Percentage Differencea

N













Alcohol

90.7

1,794

77.8

1,790

-13.1

*

1.6

1,787


-14

960,561













Any illicit drug

75.4

1,799

59.3

1,799

-16.1

*

1.5

1,799


-21

967,012













Marijuana

56.5

1,789

41.0

1,774

-16.0

*

1.6

1,774


-28

952,103

Cocaine

42.9

1,788

23.4

1,790

-19.5

*

2.0

1,785


-45

958,818

Crack

29.0

1,791

24.3

1,786

-4.8

*

1.6

1,784


-17

957,890

Heroin

13.8

1,791

12.0

1,788

-1.9

*

0.7

1,787


-14

959,101

Inhalants

4.3

1,787

2.0

1,782

-2.3

*

0.7

1,782


-53

958,560

PCP

4.5

1,790

1.8

1,782

-2.7

*

0.5

1,782


-60

957,052

Hallucinogens

13.1

1,788

5.7

1,778

-7.4

*

0.9

1,778


-56

955,836

Illegal methadone

2.9

1,789

2.2

1,789

-0.6


0.4

1,789


n.s.

961,428

Narcotics

8.8

1,786

6.1

1,786

-2.7

*

0.6

1,786


-31

960,152

Methamphetamines

14.3

1,789

8.1

1,781

-6.2

*

1.2

1,780


-43

958,332

Downers

14.7

1,790

7.6

1,782

-7.1

*

0.8

1,782


-48

958,638

Other

6.5

1,755

3.2

1,755

-3.4

*

0.5

1,755


-52

944,695

Note: Percentages are weighted to reflect a population of approximately 967,000 individuals discharged from treatment between September 1, 1989, and August 31, 1990, who were still living five or more years after treatment.

* Difference is significant at p<.05. n.s. Difference not significant at p<.05.

a Cases missing a response for either the "before" or "after" question were not used to calculate the difference or p-value of the paired t-test.

Table B-2.Percentage in inpatient treatment who used drugs and alcohol during the five years before and after treatment

[SROS sampled 3,047 clients discharged from drug treatment in 1989-1990]

Drug

Percentage using 5 or more times




Before

(n)


After

(n)


Differencea

Standard Error

(n)

Percentage Differencea

N















Alcohol

91.8

697


78.7

699


-13.4

*

1.7

696


-15

355,66 5















Any illicit drug

77.7

700


58.4

700


-19.2

*

1.9

700


-25

357,95 4















Marijuana

54.8

696


36.0

690


-19.0

*

1.5

690


-35

353,16 1

Cocaine

45.2

695


23.8

697


-21.3

*

2.5

694


-47

353,29 6

Crack

36.5

698


31.2

696


-5.2

*

2.2

695


-14

355,52 3

Heroin

14.5

697


12.6

695


-1.9


1.1

695


n.s.

354,54 9

Inhalants

4.6

697


1.6

696


-3.0

*

0.7

696


-65

355,32 1

PCP

4.1

696


1.4

693


-2.8

*

0.7

693


-68

353,73 1

Hallucinogens

10.9

697


3.9

695


-7.0

*

1.2

695


-64

355,85 8

Illegal methadone

3.4

696


2.2

696


-1.2


0.8

696


n.s.

355,49 3

Narcotics

9.4

695


6.0

695


-3.4

*

1.0

695


-36

354,98 2

Methamphetamines

14.0

697


7.1

696


-6.9

*

2.0

696


-49

356,308

Downers

14.8

697


7.9

694


-7.0

*

1.0

694


-47

355,19 9

Other

8.0

680


3.5

680


-4.5

*

0.7

680


-56

348,06 4

Note: Percentages are weighted to reflect a population of approximately 967,000 individuals discharged from treatment between September 1, 1989, and August 31, 1990 who were still living five or more years after treatment.

* Difference is significant at p<.05. n.s. Difference not significant at p<.05.

a Cases missing a response for either the "before" or "after" question were not used to calculate the difference or p-value of the paired t-test.

Table B-3.Percentage in residential treatment who used drugs and alcohol during the five years before and after treatment

[SROS sampled 3,047 clients discharged from drug treatment in 1989-1990]

Drug

Percentage using 5 or more times




Before

(n)


After

(n)


Differencea

Standard Error

(n)

Percentage Differencea

N















Alcohol

92.1

326


81.3

325


-10.8

*

2.3

325


-12

173,62 7















Any illicit drug

88.8

326


68.6

326


-20.2

*

2.5

326


-23

173,81 1















Marijuana

67.9

323


47.1

320


-21.6

*

3.1

320


-32

170,71 3

Cocaine

53.4

324


24.3

324


-29.2

*

3.9

323


-55

171,99 9

Crack

48.5

324


33.8

322


-15.3

*

4.4

321


-32

170,54 2

Heroin

9.2

323


9.0

324


-0.2


1.4

323


n.s.

172,00 6

Inhalants

7.3

324


3.1

322


-3.9


2.1

322


n.s.

170,79 4

PCP

5.4

324


1.6

321


-3.9

*

1.6

321


-72

170,58 8

Hallucinogens

19.2

322


6.5

320


-12.9

*

2.9

320


-67

169,31 7

Illegal methadone

2.2

323


1.9

323


-0.3


1.2

323


n.s.

171,95 7

Narcotics

12.3

321


9.1

321


-3.2


1.7

321


n.s.

171,30 0

Methamphetamines

23.1

323


14.9

321


-8.4

*

3.1

320


-36

170,164

Downers

19.9

323


12.5

321


-7.6

*

1.4

321


-38

171,33 5

Other

7.4

321


5.3

321


-2.1


1.1

321


n.s.

170,90 9

Note: Percentages are weighted to reflect a population of approximately 967,000 individuals discharged from treatment between September 1, 1989, and August 31, 1990, who were still living five or more years after treatment.

* Difference is significant at p<.05.

n.s. Difference not significant at p<.05.

a Cases missing a response for either the "before" or "after" question were not used to calculate the difference or p-value of the paired t-test.

Table B-4.Percentage in outpatient methadone treatment who used drugs and alcohol during the five years before and after treatment

[SROS sampled 3,047 clients discharged from drug treatment in 1989-1990]

Drug

Percentage using 5 or more times




Before

(n)


After

(n)


Differencea

Standard Error

(n)

Percentage Differencea

N















Alcohol

78.0

217


63.8

216


-14.6

*

3.4

216


-19

47,630















Any illicit drug

95.2

217


86.1

217


-9.1

*

1.8

217


-10

47,871















Marijuana

58.5

216


39.3

215


-19.4

*

3.2

215


-33

47,558

Cocaine

61.2

217


49.3

216


-12.0

*

4.4

216


-20

47,711

Crack

24.2

215


23.7

215


-0.5


5.9

215


n.s.

47,248

Heroin

82.1

216


60.1

216


-22.1

*

5.1

216


-27

47,820

Inhalants

1.6

215


1.0

213


-0.7


0.5

213


n.s.

47,180

PCP

3.4

216


0.7

215


-2.6

*

1.0

215


-76

47,662

Hallucinogens

12.4

215


3.8

214


-8.6

*

2.9

214


-69

47,507

Illegal methadone

15.4

216


10.9

216


-4.5

*

2.2

216


-29

47,820

Narcotics

17.0

216


12.4

216


-4.6

*

2.0

216


-27

47,713

Methamphetamines

11.1

215


3.1

214


-8.1

*

2.3

214


-73

47,421

Downers

28.8

216


14.7

214


-14.3

*

3.0

214


-50

46,924

Other

9.6

212


5.4

212


-4.3


2.2

212


n.s.

47,000

Note: Percentages are weighted to reflect a population of approximately 967,000 individuals discharged from treatment between September 1, 1989, and August 31, 1990, who were still living five or more years after treatment.

* Difference is significant at p<.05. n.s. Difference not significant at p<.05.

a Cases missing a response for either the "before" or "after" question were not used to calculate the difference or p-value of the paired t-test.

Table B-5.Percentage in outpatient nonmethadone treatment who used drugs and alcohol during the five years before and after treatment

[SROS sampled 3,047 clients discharged from drug treatment in 1989-1990]

Drug

Percentage using 5 or more times




Before

(n)


After

(n)


Differencea

Standard Error

(n)

Percentage Differencea

N















Alcohol

90.5

554


77.1

550


-13.5

*

3.2

550


-15

383,639















Any illicit drug

64.9

556


52.6

556


-12.3

*

2.6

556


-19

387,375















Marijuana

52.8

554


43.2

549


-10.2

*

2.6

549


-19

380,671

Cocaine

33.9

552


19.5

553


-14.4

*

3.0

552


-42

385,813

Crack

14.0

554


13.7

553


-0.3


2.2

553


n.s.

384,577

Heroin

6.7

555


6.7

553


-0.1


1.3

553


n.s.

384,726

Inhalants

3.0

551


1.9

551


-1.1


1.2

551


n.s.

385,266

PCP

4.5

554


2.4

553


-2.1

*

1.0

553


-47

385,072

Hallucinogens

12.5

554


7.4

549


-5.2

*

1.6

549


-42

383,155

Illegal methadone

1.1

554


1.2

554


0.1


0.6

554


n.s.

386,157

Narcotics

5.7

554


4.2

554


-1.5


2.0

554


n.s.

386,157

Methamphetamines

10.9

554


6.6

550


-4.3

*

2.3

550


-39

384,439

Downers

10.4

554


4.2

553


-6.3

*

3.1

553


-61

385,180

Other

4.4

542


1.6

542


-2.8

*

2.2

542


-64

378,721

Note: Percentages are weighted to reflect a population of approximately 967,000 individuals discharged from treatment between September 1, 1989, and August 31, 1990, who were still living five or more years after treatment.

* Difference is significant at p<.05. n.s. Difference not significant at p<.05.

a Cases missing a response for either the "before" or "after" question were not used to calculate the difference or p-value of the paired t-test.

Table B-6.Number of days per month used specific drugs in five years before and after treatment, among respondents who used the drug during the five years before treatment

[SROS sampled 3,047 clients discharged from drug treatment in 1989-1990]

Drug

Number of days used




Before

(n)


After

(n)


Differencea

Standard Error

(n)

Percentage Differencea

N















Alcohol

16.8

1,374


10.7

1,296


-5.5

*

0.5

1,296


-33

748,089















Marijuana

14.6

875


7.1

840


-7.1

*

0.5

840


-49

471,431

Cocaine

12.1

725


4.7

701


-7.2

*

0.5

701


-60

377,410

Crack

16.2

445


8.6

428


-7.6

*

0.8

428


-47

245,086

Heroin

21.2

312


13.4

298


-7.6

*

0.9

298


-36

120,217

Inhalants

7.7

84


1.8

84


-6.0

*

1.3

84


-78

36,510

PCP

8.8

77


2.5

77


-6.2

*

1.3

77


-70

40,236

Hallucinogens

4.5

232


1.7

229


-2.8

*

0.7

229


-62

121,655

Illegal methadone

8.3

74


3.2

74


-5.1

*

1.5

74


-61

26,738

Narcotics

10.5

163


4.4

159


-5.8

*

0.9

159


-55

77,093

Methamphetamines

12.0

249


3.7

242


-8.0

*

1.1

242


-67

128,597

Downers

10.1

276


5.0

272


-5.2

*

0.7

272


-51

130,167

Other

15.0

105


4.7

103


-10.4

*

1.5

103


-69

56,449

Note: Percentages are weighted to reflect a population of approximately 967,000 individuals discharged from treatment between September 1, 1989, and August 31, 1990, who were still living five or more years after treatment.

* Difference is significant at p<.05.

a Cases missing a response for either the "before" or "after" question were not used to calculate the difference or p-value of the paired t-test.

Table B-7. Number of days per month used specific drugs in five years before and after treatment, among respondents in inpatient treatment who used the drug during the five years before treatment

[SROS sampled 3,047 clients discharged from drug treatment in 1989-1990]

Drug

Number of days used




Before

(n)


After

(n)


Differencea

Standard Error

(n)

Percentage Differencea

N















Alcohol

18.2

546


11.6

509


-6.1

*

0.8

508


-34

263,618















Marijuana

14.6

319


5.7

308


-8.5

*

0.7

308


-58

160,952

Cocaine

13.7

268


5.3

261


-8.1

*

0.6

261


-59

141,104

Crack

16.5

193


10.0

188


-6.6

*

0.7

188


-40

108,069

Heroin

22.3

87


13.8

83


-8.4

*

1.1

83


-38

44,825

Inhalants

12.2

35


2.5

35


-9.7

*

2.5

35


-80

13,719

PCP

10.2

24


3.2

24


-6.9

*

1.1

24


-68

13,301

Hallucinogens

4.8

76


1.9

76


-2.9

*

1.0

76


-60

37,230

Illegal methadone

8.9

22


2.5

22


-6.5

*

1.9

22


-73

11,969

Narcotics

8.4

52


3.9

52


-4.5

*

1.0

52


-54

29,032

Methamphetamines

13.3

90


3.5

87


-9.5

*

1.0

87


-71

43,472

Downers

11.7

94


5.1

92


-6.8

*

1.2

92


-58

49,512

Other

13.3

49


4.5

48


-8.6

*

1.7

48


-65

24,528

Note: Percentages are weighted to reflect a population of approximately 967,000 individuals discharged from treatment between September 1, 1989, and August 31, 1990, who were still living five or more years after treatment.

* Difference is significant at p<.05.

a Cases missing a response for either the "before" or "after" question were not used to calculate the difference or p-value of the paired t-test.

Table B-8.Number of days per month used specific drugs in five years before and after treatment, among respondents in residential treatment who used the drug during the five years before treatment

[SROS sampled 3,047 clients discharged from drug treatment in 1989-1990]

Drug

Number of days used




Before

(n)


After

(n)


Differencea

Standard Error

(n)

Percentage Differencea

N















Alcohol

18.2

246


12.3

228


-5.5

*

1.1

228


-30

120,690















Marijuana

15.8

186


8.1

179


-7.3

*

1.3

179


-46

96,774

Cocaine

9.8

153


3.1

148


-6.3

*

1.1

148


-64

83,049

Crack

18.7

129


7.3

121


-11.0

*

1.5

121


-59

69,289

Heroin

17.7

30


12.2

28


-5.2

*

2.0

28


-29

13,795

Inhalants

5.6

22


1.3

22


-4.3

*

1.0

22


-77

10,297

PCP

9.3

20


0.2

20


-9.1

*

4.0

20


-98

9,238

Hallucinogens

4.8

64


1.2

62


-3.6

*

1.1

62


-75

31,181

Illegal methadone

3.2

6


3.5

6


0.3


2.9

6


n.a.

3,847

Narcotics

10.1

36


4.1

35


-5.5

*

1.9

35


-54

18,777

Methamphetamines

10.8

64


3.4

62


-6.9

*

1.4

62


-64

36,498

Downers

6.7

64


4.3

63


-2.5

*

0.8

63


-37

32,108

Other

14.7

21


8.2

20


-7.2

*

2.2

20


-49

10,765

Note: Percentages are weighted to reflect a population of approximately 967,000 individuals discharged from treatment between September 1, 1989, and August 31, 1990, who were still living five or more years after treatment.

* Difference is significant at p<.05. n.s. Difference not significant at p<.05.

a Cases missing a response for either the "before" or "after" question were not used to calculate the difference or p-value of the paired t-test.

n.a. Significant percentage difference is not reported due to extremely small sample size of less than 20 cases.

Table B-9.Number of days per month used specific drugs in five years before and after treatment, among respondents in outpatient methadone treatment who used the drug during the five years before treatment

[SROS sampled 3,047 clients discharged from drug treatment in 1989-1990]

Drug

Number of days used




Before

(n)


After

(n)


Differencea

Standard Error

(n)

Percentage Differencea

N















Alcohol

14.9

141


10.5

139


-4.3

*

1.8

139


-29

32,673















Marijuana

13.2

102


5.5

98


-7.2

*

1.3

98


-55

24,471

Cocaine

13.8

116


8.2

108


-5.7

*

1.2

108


-41

24,122

Crack

11.9

45


7.3

41


-4.6

*

1.1

41


-39

10,326

Heroin

24.4

156


14.8

148


-9.4

*

1.2

148


-39

33,791

Inhalants

11.7

3


4.8

3


-6.9


6.4

3


n.a.

775

PCP

7.9

9


0.8

9


-7.1

*

3.2

9


n.a.

1,567

Hallucinogens

3.0

23


0.6

23


-2.3

*

0.6

23


-77

5,897

Illegal methadone

8.7

37


4.4

37


-4.3

*

1.9

37


-49

6,960

Narcotics

12.9

37


4.0

36


-9.0

*

2.2

36


-70

7,695

Methamphetamines

11.2

25


1.8

25


-9.4

*

3.1

25


-84

5,312

Downers

9.7

57


3.5

56


-6.2

*

1.0

56


-64

12,882

Other

20.4

13


12.6

13


-7.8

*

3.1

13


n.a.

3,726

Note: Percentages are weighted to reflect a population of approximately 967,000 individuals discharged from treatment between September 1, 1989, and August 31, 1990, who were still living five or more years after treatment.

* Difference is significant at p<.05.

a Cases missing a response for either the "before" or "after" question were not used to calculate the difference or p-value of the paired t-test.

n.a. Significant percentage difference is not reported due to extremely small sample size of less than 20 cases.

Table B-10. Number of days per month used specific drugs in five years before and after treatment, among respondents in outpatient nonmethadone treatment who used the drug during the five years before treatment

[SROS sampled 3,047 clients discharged from drug treatment in 1989-1990]

Drug

Number of days used




Before

(n)


After

(n)


Differencea

Standard Error

(n)

Percentage Differencea

N















Alcohol

15.0

441


9.3

420


-5.2

*

9.3

420


-35

285,078















Marijuana

14.1

268


8.0

255


-5.7

*

1.1

255


-40

16,800

Cocaine

11.6

188


4.3

184


-7.2

*

1.0

184


-62

118,051

Crack

13.0

78


7.7

78


-5.3

*

1.8

78


-41

48,232

Heroin

16.1

39


11.1

39


-5.0


2.6

39


n.s.

23,448

Inhalants

4.2

24


1.1

24


-3.1

*

1.4

24


-74

11,719

PCP

7.4

24


3.5

24


-3.9


2.1

24


n.s.

16,130

Hallucinogens

4.2

69


2.1

68


-2.1


1.4

68


n.s.

45,360

Illegal methadone

10.9

9


3.3

9


-7.6


7.0

9


n.a.

3,962

Narcotics

13.0

38


5.4

36


-6.6

*

2.2

36


-51

19,708

Methamphetamines

11.9

70


4.3

68


-7.0

*

2.6

68


-59

39,905

Downers

11.3

61


6.2

61


-5.1


2.2

61


n.s.

34,307

Other

16.6

22


0.8

22


-15.8

*

3.1

22


-95

16,027

Note: Percentages are weighted to reflect a population of approximately 967,000 individuals discharged from treatment between September 1, 1989, and August 31, 1990, who were still living five or more years after treatment.

* Difference is significant at p<.05. n.s. Difference not significant at p<.05.

a Cases missing a response for either the "before" or "after" question were not used to calculate the difference or p-value of the paired t-test.

n.a. Significant percentage difference is not reported due to extremely small sample size of less than 20 cases.

Table B-11. Number of days per month used specific drugs in five years before and after treatment, among respondents who used the drug during the five years before and after treatment

[SROS sampled 3,047 clients discharged from drug treatment in 1989-1990]

Drug

Number of days used




Before

(n)


After

(n)


Differencea

Standard Error

(n)

Percentage Differencea

N















Alcohol

15.7

1,123


13.3

1,045


-2.4

*

0.4

1,045


-15

537,084















Marijuana

15.2

560


10.9

525


-4.3

*

0.6

525


-28

292,921

Cocaine

13.7

342


10.8

318


-2.9

*

0.7

318


-21

158,608

Crack

16.7

260


15.0

243


-1.8

*

0.8

243


-11

136,078

Heroin

23.1

212


21.3

198


-1.8


0.9

198


n.s.

72,740

Inhalants

7.2

20


7.6

20


0.4


3.4

20


n.s.

8,492

PCP

15.8

18


11.1

18


-4.6


2.8

18


n.a.

9,208

Hallucinogens

5.5

65


5.9

62


0.5


1.3

62


n.s.

35,400

Illegal methadone

5.5

32


8.2

32


2.6

*

1.2

32


47

10,616

Narcotics

11.3

81


9.0

77


-2.2


1.2

77


n.s.

36,492

Methamphetamines

11.7

91


9.5

84


-2.2


1.4

84


n.s.

48,510

Downers

12.0

130


10.7

126


-1.3


1.2

126


n.s.

60,553

Other

15.9

33


14.7

31


-1.2


1.2

31


n.s.

17,624

Note: Percentages are weighted to reflect a population of approximately 967,000 individuals discharged from treatment between September 1, 1989, and August 31, 1990, who were still living five or more years after treatment.

* Difference is significant at p<.05. n.s. Difference not significant at p<.05.

a Cases missing a response for either the "before" or "after" question were not used to calculate the difference or p-value of the paired t-test.

n.a. Significant percentage difference is not reported due to extremely small sample size of less than 20 cases.

Table B-12.Number of days per month used specific drugs in five years before and after treatment, among respondents in inpatient treatment who used the drug before and after treatment

[SROS sampled 3,047 clients discharged from drug treatment in 1989-1990]

Drug

Number of days used




Before

(n)


After

(n)


Differencea

Standard Error

(n)

Percentage Differencea

N















Alcohol

17.9

449


14.1

412


-3.0

*

0.7

412


-17

215,981















Marijuana

16.3

193


9.6

182


-6.2

*

0.8

182


-38

96,405

Cocaine

15.3

117


12.1

110


-2.4

*

0.9

110


-16

61,633

Crack

16.4

128


15.3

123


-1.4


0.8

123


n.s.

70,975

Heroin

24.8

56


21.9

52


-3.1

*

1.0

52


-13

28,262

Inhalants

15.9

5


15.8

5


-0.1


13.0

5


n.a.

2,195

PCP

18.9

6


13.2

6


-5.7


5.0

6


n.a.

3,263

Hallucinogens

8.5

17


8.0

17


-0.5


2.6

17


n.a.

8,832

Illegal methadone

5.9

8


6.4

8


0.5


0.5

8


n.a.

4,606

Narcotics

9.9

22


8.4

22


-1.5


1.2

22


n.s.

13,593

Methamphetamines

12.9

31


10.3

28


-1.9


1.6

28


n.s.

14,896

Downers

13.9

42


12.2

40


-2.2


2.1

40


n.s.

20,777

Other

16.0

16


13.5