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Table 2 Pattern of psychoactive substances of abuse among respondents (N = 400)

From: Psychoactive substance abuse among commercial bus drivers in Umuahia, Abia State, South-Eastern Nigeria: an uncontrolled “epidemic” with attendant road traffic crashes

Variables

Frequency (n)

Percent (%)

Ever used a psychoactive substance

  Yes

398

99.5

  No

2

0.5

Ever abused a psychoactive substance (n = 398)

  Yes

297

74.6

  No

101

25.4

a Substances of abuse ever used by respondents

  Alcohol

201

50.3

  Cigarettes

122

30.5

  Alcoholic herbal mixtures

85

21.3

  Kolanut

47

11.8

  Marijuana

42

10.5

  Coffee

7

1.8

  Tramadol

43

10.8

a Substances currently used by respondents

  Alcohol

204

51.0

  Cigarettes

109

27.3

  Alcoholic herbal mixtures

64

16.0

  Kolanut

42

10.5

  Marijuana

34

8.5

  Coffee

7

1.8

  Tramadol

31

7.8

Person who introduced respondent to the substance ( n  = 297)

  Personal decision

109

36.7

  Colleagues

98

33.0

  Friends

90

30.3

Regularity of abuse of these substances ( n  = 297)

  Once daily

60

20.2

  Twice daily

146

49.2

  Thrice daily

64

21.5

  More than thrice

27

9.1

Time of abuse of these substances ( n  = 297)

  Before driving

94

31.6

  During driving

75

25.3

  After driving

58

19.5

  Any time

70

23.6

Optimal performance without substance ( n  = 297)

  Yes

179

60.3

  No

118

39.7

  1. aMultiple responses allowed