Table 3.

Binary logistic regressions for ‘‘like to use less’’, ‘‘like help to use less’’, and ‘‘planning to seek help to use less’’, in the next year for cannabis and tobacco.

	Like to use less		Like help to use less		Planning to seek help to use less
Variables	aOR	95% CI	aOR	95% CI	aOR	95% CI
Cannabis
Age	0.981a	(0.977, 0.985)	1.025a	(1.016, 1.034)	1.023a	(1.008, 1.039)
Sex	1.108a	(1.026, 1.197)	0.870	(0.733, 1.034)	0.970	(0.709, 1.327)
DPM cannabis	1.025a	(1.020, 1.030)	1.033a	(1.022, 1.045)	1.046a	(1.025, 1.068)
DPM tobaccob	0.995a	(0.992, 0.997)	1.007a	(1.000, 1.014)	1.027a	(1.013, 1.040)
DPM tobacco with cannabisb	1.017a	(1.012, 1.023)	1.018a	(1.006, 1.030)	0.985	(0.965, 1.006)
ROA	0.626a	(0.561, 0.699)	1.615a	(1.230, 2.120)	0.849	(0.525, 1.524)
Constant	0.459	–	0.041	–	0.010	–
N	18,971		5728		5060
Tobacco
Age	1.019a	(1.015, 1.023)	1.047a	(1.041, 1.052)	1.059a	(1.052, 1.066)
Sex	1.004	(0.934, 1.080)	0.770a	(0.690, 0.858)	0.656a	(0.555, 0.775)
DPM cannabis	0.997	(0.992, 1.002)	0.996	(0.988, 1.003)	0.998	(0.986, 1.009)
DPM tobaccob	1.034a	(1.031, 1.037)	1.045a	(1.040, 1.051)	1.049a	(1.040, 1.058)
DPM tobacco with cannabisb	1.000	(0.995, 1.005)	0.996	(0.989, 1.004)	0.990	(0.979, 1.002)
ROA	1.107a	(1.003, 1.221)	1.806a	(1.556, 2.095)	2.039a	(1.638, 2.539)
Constant	0.519	–	0.033	–	0.009	–
N	18,315		11,042		9275

DPM, days per month; aOR, adjusted odds ratio; ROA, route of administration (tobacco-based inhaled route is the reference category).

^a95% CI does not cross 1.

^bNot all respondents had used tobacco or tobacco with cannabis in the last month.