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Table 1 Socio-demographics, drug use and offending history by regular use of heroin in year before prison

From: Heroin use impairs smoking cessation among Australian prisoners

 

Not regularly used heroin % (N = 265)

Regularly used heroin % (N = 160)

Total men % (N = 425)

P-value

Socio-demographics

    

Age group

    

  < 25 years

25.3

19.4

23.1

 

  25-29 years

17.4

24.4

20.0

P < 0.01

  30-39 years

23.4

37.5

28.7

 

  40+ years

34.0

18.9

28.2

 

Mean age

34.4

32.0

33.5

P < 0.02

  (+SD; Range)

(11.2; 18–65)

(8.0; 19–54)

(10.2; 18–65)

 

Aboriginal origin

14.3

16.3

15.1

NS

Born in Australia

74.8

75.0

74.9

NS

Left school no qualification

39.3

50.6

43.5

P < 0.03

Mean age left school

15.5

14.6

15.1

P < 0.01

  (+SD; Range)

(1.7; 12–26)

(2.3; 0–19)

(2.0; 0–26)

 

Institutionalised as a child (juvenile detention and/or placed in care)

31.3

48.8

37.9

P < 0.01

Homeless prior to prison

4.5

11.3

7.1

P < 0.01

Employed while in prison

79.3

60.0

72.0

P < 0.01

Ever use drugs by drug type

    

Cannabis

89.1

98.8

92.7

P < 0.01

Amphetamines

66.0

95.0

76.9

P < 0.01

Cocaine

44.2

81.9

58.4

P < 0.01

Heroin

30.1

100.0

56.5

P < 0.01

Other opiates

18.9

66.9

36.9

P < 0.01

Tranquilisers

22.6

66.9

39.3

P < 0.01

Any drugs (other than heroin)

92.1

100.0

38.6

P < 0.01

Any drugs

92.5

100.0

95.3

P < 0.01

Regularly (daily or almost daily) use drugs prior to prison by drug type

    

Cannabis

52.8

73.1

60.5

P < 0.01

Amphetamines

41.9

60.0

48.7

P < 0.01

Cocaine

23.8

56.9

36.2

P < 0.01

Other opiates

3.0

37.5

16.0

P < 0.01

Tranquilisers

6.4

35.6

17.4

P < 0.01

Any drugs (other than heroin)

69.1

92.5

77.9

P < 0.01

Any drugs

69.4

100.0

80.9

P < 0.01

Offending history

    

Previously incarcerated

50.6

85.6

63.8

P < 0.01

Median number adult prison terms

2.0

4.0

2.0

P < 0.01

  (+SD; Range)

(2.7; 1–20)

(2.8; 1–15)

(2.9; 1–20)

 

Median years in prison at baseline

1.9

1.8

1.9

NS

  (+SD; Range)

(4.2; 0.02-27.1)

(4.1; 0.03-23.2)

(4.2; 0.02-27.1)

 

Median sentence length in years

3.9

3.1

3.6

NS

  (+SD; Range)

(13.4; 0.5-113.9)

(15.4; 0.4-115.8)

(14.2; 0.4-115.8)

 
  1. Abbreviations: SD = standard deviation; NS = not significant.