Table 1 Demographic data for each of the four cannabis use groups

Mean age, years (SD)

43.1 (15.1)

48.7 (11.7)

42.1 (13.7)

49.3 (13.8)

48.1 (13.9)

**0.001(0.04)

Sex, n male

14 (26%)

23 (35%)

15 (38%)

80 (26%)

132 (29%)

0.308 (0.09)

Income (> $100k/year)

36 (69%)

38 (58%)

27 (69%)

189 (64%)

290 (64%)

0.518 (0.07)

% White

45 (83%)

56 (86%)

33 (85%)

246 (82%)

381 (82%)

0.960 (0.08)

Education

0.094 (0.11)

  University

25 (46%)

24 (36%)

13 (33%)

139 (46%)

201 (43%)

0.232(0.10)

  College

15 (28%)

30 (45%)

12 (30%)

98 (32%)

155 (33%)

0.145(0.11)

  Highschool or less

14 (26%)

12 (18%)

15 (38%)

65 (22%)

106 (23%)

0.100(0.12)

Occupation

*0.021 (0.12)

  Employed

17 (32%)

25 (38%)

14 (36%)

120 (40%)

176 (38%)

0.722 (0.05)

  Retired

8 (15%)

20 (30%)

7 (18%)

87 (29%)

122 (27%)

0.092 (0.12)

  Student

6 (11%)

1 (2%)

5 (13%)

12 (4%)

24 (5%)

*0.011 (0.16)

  Unemployed

22 (42%)

20 (30%)

13 (33%)

81 (27%)

136 (30%)

0.183 (0.10)

Psychiatric comorbidities

0.207 (0.10)

  Mood disorders

39 (72%)

39 (59%)

32 (80%)

207 (69%)

317 (69%)

0.138 (0.11)

  Anxiety disorders

34 (63%)

40 (61%)

28 (70%)

166 (55%)

269 (58%)

0.237 (0.10)

  Obsessive compulsive disorder

5 (9%)

6 (9%)

6 (15%)

26 (9%)

43 (9%)

0.634 (0.06)

  Substance-related/ addictive disorders

9 (17%)

2 (3%)

4 (10%)

18 (6%)

33 (7%)

*0.017 (0.17)

  Eating disorders

6 (11%)

2 (3%)

3 (8%)

20 (7%)

31 (7%)

0.370 (0.08)

Medications

0.722 (0.05)

  Antianxiety

17 (37%)

18 (30%)

17 (45%)

99 (37%)

151 (36%)

0.492 (0.08)

  Antidepressant

31 (67%)

36 (59%)

20 (53%)

159 (59%)

246 (59%)

0.579 (0.07)

  Antihypertensive

5 (11%)

9 (15%)

5 (13%)

48 (18%)

67 (16%)

0.620 (0.07)

  Respiratory therapy

12 (22%)

17 (26%)

3 (8%)

56 (18%)

88 (19%)

0.121 (0.11)