Table 2

Wave 1 sample sizes for completed interviews and collected biospecimen type by Wave 1 current tobacco-use status

	Wave 1 sample size
	Youth interview	Adults
		Collected biospecimens
Tobacco product use		Interview	Urine	Blood	Buccal*	Urine and blood	All 3*
Any current tobacco use	1151†	17 732‡	12 533	8422	7364	8020	4086
Any current cigarette use	634	13 529	9760	6679	5753	6352	3268
Any current smokeless use, excluding snus	180	1873	1319	848	734	825	426
Any current e-cigarette use	418	3642	2666	1836	1573	1739	897
Any current cigarillo use	293	2969	2310	1525	1355	1464	735
Any current traditional cigar use	92	2586	1769	1173	1047	1124	575
Any current hookah use	226	3134	2306	1414	1401	1336	694
Any current filtered cigar use	67	1295	999	689	629	658	383
Any current pipe use	41	709	518	354	300	339	174
Any current snus use Any current dissolvable	61 3	479 67	366 52	256 31	227 33	247 30	132 14
Any current bidi use	6
Any current kretek use	11
No current tobacco use	11 815	13 902	8904	5862	4986	5611	2755

Note that because of the differential sampling rates for different demographic and tobacco-use groups in the PATH Study, the sample sizes reported in these tables cannot be used to estimate population percentages in different demographic categories. Weights need to be used to calculate estimates from the PATH Study.
*Buccal cells were collected during a portion of Wave 1 (ended on 18 May 2014).
†Youth current user: has used the product at least once in the past 30 days.
‡Adult current user: has ever smoked/used (respective tobacco product) and now smokes/uses (respective tobacco product) ‘every day’ or ‘some days’.