Table 4.

Descriptive statistics for number of products used at Wave 1 (N=11429)

		Class 1 (N=10130) – Nonusers		Class 2 (N=909) – Ever Users of Cigarettes and E-cigarettes		Class 3 (N=390) – Current Polytobacco Users
		N	%	N	%	N	%
Number of products used: non-current use
	0	9311	91.9%	19	2.2%	105	26.3%
	1	819	8.1%	159	17.8%	127	32.2%
	2	0	0.0%	466	50.9%	93	25.3%
	3 to 5	0	0.0%	265	29.1%	65	16.1%
Mean (SD)			0.1 (0.3)		2.2 (0.9)		1.4 (1.1)
Number of products used: current use
	0	9960	98.2%	551	60.0%	0	0.0%
	1	170	1.8%	332	36.7%	43	10.6%
	2	0	0.0%	26	3.4%	217	56.4%
	3 to 5	0	0.0%	0	0.0%	130	33.0%
Mean (SD)			0.0 (0.1)		0.4 (0.6)		2.3 (0.8)
Number of products used: ever use (non-current use + current use)
	0	9141	90.2%	0	0.0%	0	0.0%
	1	989	9.8%	0	0.0%	0	0.0%
	2	0	0.0%	502	54.9%	53	13.9%
	3 to 5	0	0.0%	407	45.1%	337	86.1%
Mean (SD)			0.1 (0.3)		2.6 (0.8)		3.7 (0.9)

This table shows the number of products (out of 5) for which participants reported non-current use, current use and ever use across the three latent classes identified. Participants are assigned to the class for which they have the highest posterior probability. Note: Current use=used in past 30 days; Non-current use =used in the lifetime, but not in past 30 days; Ever use = non-current use + current use. All results are weighted (excepted N’s). N = 11429 because results are shown for participants with complete data on the use of all five products at Wave 1.