Table 2:

Proportions of ever-users who vaped/smoked in the past 30 days, past week, and on ≥20 days in the past month, by country, 2017 to 2019

	CANADA				ENGLAND				US
	2017	2018	2019	Difference 2019 vs 2018	2017	2018	2019	Difference 2019 vs 2018	2017	2018	2019	Difference 2019 vs 2018
				AOR (95% CI); p-value				AOR (95% CI); p-value				AOR (95% CI); p-value
VAPING (among ever-vapers)	n=1182	n=1275	n=1680		n=1348	n=1283	n=1260		n=1283	n=1336	n=1734
Past 30-day vaping	28.8% (340)	36.3% (463)	43.9% (738)	1.36 (1.17–1.59); p<.0001	25.8% (347)	27.3% (351)	34.8% (439)	1.44 (1.19–1.75); p=.0002	35.4% (454)	47.5% (635)	42.5% (736)	0.81 (0.68–0.97); p=.02
Past-week vaping	17.6% (208)	22.7% (290)	30.2% (508)	1.48 (1.24–1.75); p<.0001	13.7% (184)	14.0% (179)	19.2% (241)	1.49 (1.17–1.91); p=.001	20.4% (262)	31.1% (416)	29.0% (503)	0.91 (0.75–1.09); p=.31
Vaping ≥20 days of past 30	6.3% (74)	7.2% (92)	14.0% (236)	2.11 (1.63–2.73); p<.0001	4.4% (59)	5.9% (76)	7.5% (94)	1.33 (0.92–1.94); p=.13	6.9% (89)	11.5% (154)	15.4% (267)	1.42 (1.10–1.85); p=.008
CIGARETTE SMOKING (among ever-smokers)	n=1288	n=1193	n=1287		n=1615	n=1554	n=1334		n=1322	n=1306	n=1334
Past 30-day smoking	33.4% (431)	32.1% (383)	29.8% (384)	0.91 (0.77–1.07); p=.24	38.5% (622)	41.5% (645)	38.9% (519)	0.90 (0.76–1.06); p=.19	34.1% (451)	36.0% (470)	23.6% (315)	0.56 (0.46–0.67); p<.0001
Past-week smoking	23.9% (308)	24.4% (291)	22.4% (288)	0.90 (0.76–1.07); p=.23	24.2% (391)	28.6% (444)	26.7% (356)	0.91 (0.76–1.09); p=.29	26.3% (347)	25.7% (336)	17.3% (231)	0.61 (0.50–0.76); p<.0001
Smoking ≥20 days of past 30	13.4% (173)	13.3% (158)	9.2% (118)	0.66 (0.53–0.83); p=.0004	10.7% (173)	14.5% (226)	12.3% (165)	0.83 (0.65–1.05); p=.11	11.4% (151)	11.9% (156)	7.5% (100)	0.61 (0.46–0.80); p=.0004

Data are weighted %(n) or adjusted odds ratios (AOR) with 95% confidence intervals (CI) and associated p-values, adjusted for sex, age group, and race/ethnicity.