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Table 1 Characteristics of subjects who reported lifetime cannabis use – full sample and according to former, recent and current use and for those with a cannabis use disorder

From: Relationships between age at first substance use and persistence of cannabis use and cannabis use disorder

Variable

Full sample

n = 2979

Former cannabis use

n = 2215

Recent cannabis use

n = 362

Current cannabis use

n = 402

Cannabis use disordera

n = 253

Sex (%)

 Male

1923 (64.4)

1361 (61.4)

247 (68.2)

316 (78.4)

207 (81.8)

Age group (%)

 35+

1354 (45.5)

1180 (53.4)

84 (23.2)

90 (22.4)

38 (15.0)

 25–34

1102 (37.1)

816 (36.9)

128 (35.4)

159 (39.6)

89 (35.2)

 15–24

518 (17.4)

215 (9.7)

150 (41.4)

153 (38.1)

126 (49.8)

Marital status (%)

 Married/cohabiting

1642 (55.2)

1409 (63.7)

108 (29.9)

125 (31.0)

64 (25.3)

 Divorced/separated/widowed

156 (5.2)

125 (5.7)

11 (3.0)

20 (5.0)

8 (3.2)

 Single/never married

1178 (39.6)

678 (30.7)

242 (67.0)

258 (64.0)

181 (71.5)

Region (%)

 Dublin (compared to outside Dublin)

1133 (38.0)

819 (37.0)

134 (37.0)

180 (44.7)

101 (39.9)

Education (%)

 Completed third level

1677 (56.4)

1327 (60.0)

179 (49.6)

171 (42.6)

86 (34.3)

 Completed secondary

998 (33.5)

699 (31.6)

146 (40.4)

152 (37.9)

99 (39.4)

 Primary/none

299 (10.1)

185 (8.4)

36 (10.0)

78 (19.5)

66 (26.3)

Employment (%)

 Employed

1875 (63.0)

1517 (68.5)

179 (49.4)

180 (44.7)

101 (39.9)

 Unemployed

527 (17.7)

341 (15.4)

73 (20.2)

113 (28.0)

81 (32.0)

 Student

321 (10.8)

141 (6.4)

97 (26.8)

83 (20.6)

57 (22.5)

 Other

256 (8.6)

215 (9.7)

13 (3.6)

27 (6.7)

14 (5.5)

Housing tenure (%)

 Owned

1657 (55.6)

1379 (62.3)

165 (45.5)

113 (28.1)

75 (29.6)

 Rented

1033 (34.7)

687 (31.0)

144 (39.7)

203 (50.5)

118 (46.6)

 Living with family/friends or other

289 (9.7)

149 (6.7)

54 (14.9)

86 (21.4)

60 (23.7)

Other lifetime drug use (%)

 Yes

1410 (47.3)

938 (42.3)

181 (50.0)

291 (72.2)

187 (73.9)

Current alcohol use (%)

 Yes

2452 (82.4)

1781 (80.4)

324 (89.5)

348 (86.6)

211 (83.1)

Current tobacco use (%)

 Yes

1417 (47.6)

867 (39.2)

226 (62.4)

324 (80.6)

197 (77.9)

Age at first use (mean)b

All subjects

  Alcohol

15.98 ± 2.2

16.19 ± 2.3

15.59 ± 1.7

15.20 ± 1.8

15.15 ± 1.7

  Tobacco

15.50 ± 3.3

15.62 ± 3.4

15.55 ± 2.8

14.94 ± 3.1

14.75 ± 2.7

  Cannabis

19.16 ± 5.0

19.66 ± 5.2

18.14 ± 4.0

17.27 ± 3.6

16.84 ± 3.4

Subjects aged 15–34 years

  Alcohol

15.61 ± 1.6

15.75 ± 1.6

15.47 ± 1.6

15.26 ± 1.7

15.22 ± 1.7

  Tobacco

15.28 ± 2.6

15.30 ± 2.7

15.48 ± 2.6

15.09 ± 2.4

14.65 ± 2.5

  Cannabis

17.74 ± 2.6

18.07 ± 2.6

17.48 ± 2.5

16.85 ± 2.4

16.52 ± 2.5

Subjects aged 35+ years

  Alcohol

16.44 ± 2.7

16.58 ± 2.8

15.98 ± 2.0

14.98 ± 2.2

14.78 ± 1.7

  Tobacco

15.76 ± 3.9

15.89 ± 3.8

15.76 ± 3.4

14.44 ± 4.9

15.25 ± 3.5

  Cannabis

20.85 ± 6.4

21.06 ± 6.4

20.28 ± 6.5

18.68 ± 6.0

18.59 ± 6.3

  1. Displayed frequencies, percentages (in brackets) and means ± one standard deviation are weighted. Numbers may not add up in column totals because of missing data
  2. aAny cannabis abuse or dependence
  3. bData on age of first substance use were available for 2901 (alcohol), 2371 (tobacco) and 2956 (cannabis) subjects