Table 1

Respondent characteristics and ENDS flavour/device used most often

		2018, n=919		2020, n=689		Overall, n=1608
		n	%	n	%	n	%
Respondent type	Replenishment	646	70.3	366	53.1	1012	62.9
	Recontact	273	29.7	323	46.9	596	37.1
Sex	Male	446	48.5	362	52.5	808	50.2
	Female	473	51.5	327	47.5	800	49.8
Age group	18–24 years	298	32.4	295	42.8	593	36.9
	25–39 years	183	19.9	137	19.9	320	19.9
	40–54 years	168	18.3	100	14.5	268	16.7
	55 years or older	270	29.4	157	22.8	427	26.6
Annual household income	Low (≤ $30 000)	301	32.8	210	30.5	511	31.8
	Medium ($30 000 to <$60 000)	262	28.5	187	27.1	449	27.9
	High (≥ $60 000)	350	38.1	288	41.8	638	39.7
	Not stated	6	0.7	4	0.6	10	0.6
Education	Low (≤high school)	280	30.5	195	28.3	475	29.5
	Moderate (college/associate degree)	430	46.8	307	44.6	737	45.8
	High (≥bachelor’s degree)	209	22.7	187	27.1	396	24.6
Smoking status	Daily smoker	420	45.7	308	44.7	728	45.3
	Non-daily smoker	184	20.0	160	23.2	344	21.4
	Ex-smoker	315	34.3	221	32.1	536	33.3
ENDS use/smoking status	Daily/daily smoker	214	23.3	181	26.3	395	24.6
	Daily/non-daily smoker	109	11.9	80	11.6	189	11.8
	Daily/ex-smoker	286	31.1	186	27.0	472	29.4
	Weekly/daily smoker	206	22.4	127	18.4	333	20.7
	Weekly/non-daily smoker	75	8.2	80	11.6	155	9.6
	Weekly/ex-smoker	29	3.2	35	5.1	64	4.0
Flavour/device used most often
Cartridge	Tobacco/unflavoured	124	13.8	96	14.1	220	13.9
	Menthol/mint	71	7.9	85	12.5	156	9.9
	Fruit/other	95	10.5	101	14.9	196	12.4
Tank	Tobacco/unflavoured	117	13.0	59	8.7	176	11.1
	Menthol/mint	72	8.0	40	5.9	112	7.1
	Fruit/other	329	36.5	183	27.0	512	32.4
Disposable	Tobacco/unflavoured	40	4.4	42	6.2	82	5.2
	Non-tobacco flavours	53	5.9	73	10.8	126	8.0