Table 2:

Associations between past 30-day nicotine and past 30-day cannabis use among US adolescents, 2017–2019

Exposure: Past 30-Day Nicotine Use	Outcome: Past 30-Day Cannabis Use	Odds Ratio*	Lower 95% Confidence Interval Limit	Upper 95% Confidence Interval Limit
Smoking Only (vs. No Use)	Without Vaping	7.01	5.43	9.03
Smoking Only (vs. No Use)	With Vaping	8.03	5.75	11.23
Vaping Only (vs. No Use)	Without Vaping	4.26	3.75	4.85
Vaping Only (vs. No Use)	With Vaping	20.31	17.85	23.11
Smoking and Vaping (vs. No Use)	Without Vaping	8.95	7.09	11.30
Smoking and Vaping (vs. No Use)	With Vaping	40.10	31.62	50.86

^*Adjusted for grade, sex, race, parental education, urbanicity, binge drinking, and year