Table 4.

Association between different explanatory variables and reported cannabis use past 12 months (n = 236,963)

	Model 1 Unadjusted OR (95% CI)	Model 2 Adjusted OR (95% CI)	Modell 3 Adjusted OR (95% CI)
Physical health problems (reference: no daily problems)
Daily problems	1.582 (1.527–1.638)	1.744 (1.678–1.813)	1.366 (1.312–1.423)
Gender (reference: male)
Female	0.567 (0.550–0.584)	0.467 (0.452–0.482)	0.408 (0.395–0.422)
Year of sec. School (reference: 3rd year upper sec.)
1st year lower sec.	0.066 (0.061–0.072)	0.065 (0.060–0.070)	0.070 (0.065–0.076)
2nd year lower sec.	0.141 (0.132–0.150)	0.134 (0.126–0.143)	0.141 (0.132–0.150)
3rd year lower sec.	0.268 (0.255–0.282)	0.255 (0.243–0.269)	0.260 (0.247–0.274)
1st year lower sec.	0.554 (0.530–0.579)	0.520 (0.497–0.543)	0.531 (0.508–0.556)
2nd year lower sec.	0.733 (0.702–0.766)	0.694 (0.664–0.725)	0.706 (0.675–0.739)
Family finances past 2 months (reference: badly off all the time)
Well off all the time	0.243 (0.222–0.266)	0.325 (0.295–0.359)	0.411 (0.372–0.454)
Mostly well off	0.251 (0.229–0.275)	0.336 (0.305–0.371)	0.411 (0.372–0.454)
Neither well off nor badly off	0.326 (0.297–0.358)	0.410 (0.371–0.453)	0.479 (0.433–0.530)
Mostly badly off	0.516 (0.465–0.573)	0.581 (0.520–0.650)	0.632 (0.565–0.708)
Mental health problems (reference: low degree of mental health problems)
High degree of mental health problems	2.360 (2.286–2.437)		2.219 (2.137–2.305)

OR odds ratio, CI confidence interval

Model 1 shows unadjusted bivariate correlations between cannabis use in the previous 12 months as the dependent variable, and physical health problems as an independent variable

Model 2 examines the association between cannabis use and health problems adjusted for gender, age and family finances (SES), while Model 3 is also adjusted for mental health problems